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12232020331 = 311313012071
BaseRepresentation
bin10110110010001010…
…11101000101101011
31011120110201000102001
423121011131011223
5200022344122311
65341434351431
7612056312566
oct133105350553
934513630361
1012232020331
115207724a13
12245458b577
1311cc25056b
148407774dd
154b8d024c1
hex2d915d16b

12232020331 has 8 divisors (see below), whose sum is σ = 12722992128. Its totient is φ = 11747073000.

The previous prime is 12232020301. The next prime is 12232020349. The reversal of 12232020331 is 13302023221.

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 12232020331 - 213 = 12232012139 is a prime.

It is a super-2 number, since 2×122320203312 (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 = 12232020299 and 12232020308.

It is not an unprimeable number, because it can be changed into a prime (12232020301) 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, 1501975 + ... + 1510096.

It is an arithmetic number, because the mean of its divisors is an integer number (1590374016).

Almost surely, 212232020331 is an apocalyptic number.

12232020331 is a deficient number, since it is larger than the sum of its proper divisors (490971797).

12232020331 is a wasteful number, since it uses less digits than its factorization.

12232020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012233.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12232020331 its reverse (13302023221), we get a palindrome (25534043552).

The spelling of 12232020331 in words is "twelve billion, two hundred thirty-two million, twenty thousand, three hundred thirty-one".

Divisors: 1 31 131 4061 3012071 93374201 394581301 12232020331