21013031202 has 8 divisors (see below), whose sum is σ = 42026062416. Its totient is φ = 7004343732.

The previous prime is 21013031161. The next prime is 21013031243. The reversal of 21013031202 is 20213031012.

It is an interprime number because it is at equal distance from previous prime (21013031161) and next prime (21013031243).

It is a sphenic number, since it is the product of 3 distinct primes.

21013031202 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751085928 + ... + 1751085939.

It is an arithmetic number, because the mean of its divisors is an integer number (5253257802).

Almost surely, 2^21013031202 is an apocalyptic number.

21013031202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21013031202 is a wasteful number, since it uses less digits than its factorization.

21013031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502171872.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21013031202 its reverse (20213031012), we get a palindrome (41226062214).

It can be divided in two parts, 2101 and 3031202, that added together give a palindrome (3033303).

The spelling of 21013031202 in words is "twenty-one billion, thirteen million, thirty-one thousand, two hundred two".