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1215114423133 = 132161334712923
BaseRepresentation
bin10001101011101010011…
…101101010101101011101
311022011102102011100200211
4101223222131222231131
5124402023243020013
62330114343052421
7153534445115422
oct21535235525535
94264372140624
101215114423133
11429366460986
121775b7441111
138a77aa57450
1442b51a15d49
152191baa323d
hex11aea76ab5d

1215114423133 has 16 divisors (see below), whose sum is σ = 1309682799936. Its totient is φ = 1120703351040.

The previous prime is 1215114423073. The next prime is 1215114423139. The reversal of 1215114423133 is 3313244115121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-1215114423133 is a prime.

It is a super-2 number, since 2×12151144231332 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215114423095 and 1215114423104.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94020810 + ... + 94033732.

It is an arithmetic number, because the mean of its divisors is an integer number (81855174996).

Almost surely, 21215114423133 is an apocalyptic number.

1215114423133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1215114423133 is a deficient number, since it is larger than the sum of its proper divisors (94568376803).

1215114423133 is a wasteful number, since it uses less digits than its factorization.

1215114423133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18444.

The product of its digits is 8640, while the sum is 31.

Adding to 1215114423133 its reverse (3313244115121), we get a palindrome (4528358538254).

The spelling of 1215114423133 in words is "one trillion, two hundred fifteen billion, one hundred fourteen million, four hundred twenty-three thousand, one hundred thirty-three".

Divisors: 1 13 2161 3347 12923 28093 43511 167999 7232867 27926603 43253281 94027271 363045839 562292653 93470340241 1215114423133