131211133002 has 12 divisors (see below), whose sum is σ = 284290788210. Its totient is φ = 43737044328.

The previous prime is 131211132989. The next prime is 131211133037. The reversal of 131211133002 is 200331112131.

It can be written as a sum of positive squares in only one way, i.e., 73951907481 + 57259225521 = 271941^2 + 239289^2 .

It is a super-2 number, since 2×131211133002² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7289507389 = 131211133002 / (1 + 3 + 1 + 2 + 1 + 1 + 1 + 3 + 3 + 0 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3644753677 + ... + 3644753712.

Almost surely, 2^131211133002 is an apocalyptic number.

131211133002 is an abundant number, since it is smaller than the sum of its proper divisors (153079655208).

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

131211133002 is a wasteful number, since it uses less digits than its factorization.

131211133002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289507397 (or 7289507394 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131211133002 its reverse (200331112131), we get a palindrome (331542245133).

The spelling of 131211133002 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred thirty-three thousand, two".