210131123000 has 32 divisors (see below), whose sum is σ = 491706830160. Its totient is φ = 84052448800.

The previous prime is 210131122973. The next prime is 210131123021. The reversal of 210131123000 is 321131012.

It is a super-2 number, since 2×210131123000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105064562 + ... + 105066561.

Almost surely, 2^210131123000 is an apocalyptic number.

210131123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210131123000 is an abundant number, since it is smaller than the sum of its proper divisors (281575707160).

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

210131123000 is a wasteful number, since it uses less digits than its factorization.

210131123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210131144 (or 210131130 counting only the distinct ones).

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

Adding to 210131123000 its reverse (321131012), we get a palindrome (210452254012).

The spelling of 210131123000 in words is "two hundred ten billion, one hundred thirty-one million, one hundred twenty-three thousand".