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13230412031 = 313130732341
BaseRepresentation
bin11000101001001100…
…00001000011111111
31021011001100120100102
430110212001003333
5204043441141111
610024501351315
7645601434554
oct142446010377
937131316312
1013230412031
11567a24a421
122692a0853b
13132b046695
148d71c6a2b
155267b713b
hex3149810ff

13230412031 has 8 divisors (see below), whose sum is σ = 13283247504. Its totient is φ = 13177644480.

The previous prime is 13230412021. The next prime is 13230412123. The reversal of 13230412031 is 13021403231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13230412031 - 26 = 13230411967 is a prime.

It is a super-2 number, since 2×132304120312 (a number of 21 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 = 13230411994 and 13230412012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230412021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392921 + ... + 425261.

It is an arithmetic number, because the mean of its divisors is an integer number (1660405938).

Almost surely, 213230412031 is an apocalyptic number.

13230412031 is a deficient number, since it is larger than the sum of its proper divisors (52835473).

13230412031 is a wasteful number, since it uses less digits than its factorization.

13230412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33961.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13230412031 its reverse (13021403231), we get a palindrome (26251815262).

The spelling of 13230412031 in words is "thirteen billion, two hundred thirty million, four hundred twelve thousand, thirty-one".

Divisors: 1 313 1307 32341 409091 10122733 42269687 13230412031