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1215114423132 = 223101259535261
BaseRepresentation
bin10001101011101010011…
…101101010101101011100
311022011102102011100200210
4101223222131222231130
5124402023243020012
62330114343052420
7153534445115421
oct21535235525534
94264372140623
101215114423132
11429366460985
121775b7441110
138a77aa5744c
1442b51a15d48
152191baa323c
hex11aea76ab5c

1215114423132 has 12 divisors (see below), whose sum is σ = 2835266987336. Its totient is φ = 405038141040.

The previous prime is 1215114423073. The next prime is 1215114423139. The reversal of 1215114423132 is 2313244115121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12151144231322 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1215114423132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215114423139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50629767619 + ... + 50629767642.

Almost surely, 21215114423132 is an apocalyptic number.

1215114423132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1215114423132 is an abundant number, since it is smaller than the sum of its proper divisors (1620152564204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215114423132 is a wasteful number, since it uses less digits than its factorization.

1215114423132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101259535268 (or 101259535266 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

Adding to 1215114423132 its reverse (2313244115121), we get a palindrome (3528358538253).

The spelling of 1215114423132 in words is "one trillion, two hundred fifteen billion, one hundred fourteen million, four hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 101259535261 202519070522 303778605783 405038141044 607557211566 1215114423132