210002031240 has 64 divisors (see below), whose sum is σ = 637980883200. Its totient is φ = 55291671552.

The previous prime is 210002031233. The next prime is 210002031251. The reversal of 210002031240 is 42130200012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11066577 + ... + 11085536.

It is an arithmetic number, because the mean of its divisors is an integer number (9968451300).

Almost surely, 2^210002031240 is an apocalyptic number.

210002031240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002031240 is an abundant number, since it is smaller than the sum of its proper divisors (427978851960).

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

210002031240 is a wasteful number, since it uses less digits than its factorization.

210002031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152206 (or 22152202 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 210002031240 its reverse (42130200012), we get a palindrome (252132231252).

The spelling of 210002031240 in words is "two hundred ten billion, two million, thirty-one thousand, two hundred forty".