210131231040 has 168 divisors, whose sum is σ = 754188634368. Its totient is φ = 53598673920.

The previous prime is 210131231039. The next prime is 210131231053. The reversal of 210131231040 is 40132131012.

210131231040 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 312 + 310 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1519896 + ... + 1652375.

Almost surely, 2^210131231040 is an apocalyptic number.

210131231040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210131231040 is an abundant number, since it is smaller than the sum of its proper divisors (544057403328).

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

210131231040 is a wasteful number, since it uses less digits than its factorization.

210131231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172317 (or 3172304 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210131231040 its reverse (40132131012), we get a palindrome (250263362052).

The spelling of 210131231040 in words is "two hundred ten billion, one hundred thirty-one million, two hundred thirty-one thousand, forty".