131211023000 has 64 divisors (see below), whose sum is σ = 308989792800. Its totient is φ = 52150051200.

The previous prime is 131211022991. The next prime is 131211023003. The reversal of 131211023000 is 320112131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211023003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260870 + ... + 574869.

Almost surely, 2^131211023000 is an apocalyptic number.

131211023000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131211023000 is an abundant number, since it is smaller than the sum of its proper divisors (177778769800).

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

131211023000 is a wasteful number, since it uses less digits than its factorization.

131211023000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835917 (or 835903 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131211023000 its reverse (320112131), we get a palindrome (131531135131).

The spelling of 131211023000 in words is "one hundred thirty-one billion, two hundred eleven million, twenty-three thousand".