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1213213303032 = 23350550554293
BaseRepresentation
bin10001101001111001001…
…001011110000011111000
311021222111220212110012020
4101221321021132003320
5124334130101144112
62325201551314440
7153436361632263
oct21517111360370
94258456773166
101213213303032
11428580310245
1217716681ba20
138a536c20b03
1442a11339cda
1521859c2348c
hex11a7925e0f8

1213213303032 has 16 divisors (see below), whose sum is σ = 3033033257640. Its totient is φ = 404404434336.

The previous prime is 1213213303019. The next prime is 1213213303033. The reversal of 1213213303032 is 2303033123121.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50550554293 = 1213213303032 / (1 + 2 + 1 + 3 + 2 + 1 + 3 + 3 + 0 + 3 + 0 + 3 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1213213302993 and 1213213303011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213213303033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25275277123 + ... + 25275277170.

Almost surely, 21213213303032 is an apocalyptic number.

1213213303032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213213303032 is an abundant number, since it is smaller than the sum of its proper divisors (1819819954608).

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

1213213303032 is a wasteful number, since it uses less digits than its factorization.

1213213303032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50550554302 (or 50550554298 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1213213303032 its reverse (2303033123121), we get a palindrome (3516246426153).

The spelling of 1213213303032 in words is "one trillion, two hundred thirteen billion, two hundred thirteen million, three hundred three thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 50550554293 101101108586 151651662879 202202217172 303303325758 404404434344 606606651516 1213213303032