210020331311040 has 56 divisors (see below), whose sum is σ = 666814551915600. Its totient is φ = 56005421682688.

The previous prime is 210020331311029. The next prime is 210020331311113. The reversal of 210020331311040 is 40113133020012.

It is a junction number, because it is equal to n+sod(n) for n = 210020331310998 and 210020331311016.

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, 109385588265 + ... + 109385590184.

Almost surely, 2^{210020331311040} is an apocalyptic number.

210020331311040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210020331311040 is an abundant number, since it is smaller than the sum of its proper divisors (456794220604560).

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

210020331311040 is a wasteful number, since it uses less digits than its factorization.

210020331311040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218771178469 (or 218771178459 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210020331311040 its reverse (40113133020012), we get a palindrome (250133464331052).

The spelling of 210020331311040 in words is "two hundred ten trillion, twenty billion, three hundred thirty-one million, three hundred eleven thousand, forty".