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12122032331 = 312295693001
BaseRepresentation
bin10110100101000011…
…11000100011001011
31011021210202001020102
423102201320203023
5144311220013311
65322505120015
7606252401063
oct132241704313
934253661212
1012122032331
115160631342
12242378900b
1311b25207c6
1482dd063a3
154ae32843b
hex2d28788cb

12122032331 has 16 divisors (see below), whose sum is σ = 12593990400. Its totient is φ = 11655360000.

The previous prime is 12122032303. The next prime is 12122032339. The reversal of 12122032331 is 13323022121.

It is a cyclic number.

It is not a de Polignac number, because 12122032331 - 210 = 12122031307 is a prime.

It is a super-2 number, since 2×121220323312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122032339) 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, 4037831 + ... + 4040831.

It is an arithmetic number, because the mean of its divisors is an integer number (787124400).

Almost surely, 212122032331 is an apocalyptic number.

12122032331 is a deficient number, since it is larger than the sum of its proper divisors (471958069).

12122032331 is a wasteful number, since it uses less digits than its factorization.

12122032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830.

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

Adding to 12122032331 its reverse (13323022121), we get a palindrome (25445054452).

The spelling of 12122032331 in words is "twelve billion, one hundred twenty-two million, thirty-two thousand, three hundred thirty-one".

Divisors: 1 31 229 569 3001 7099 17639 93031 130301 687229 1707569 4039331 21304099 52934639 391033301 12122032331