30313131202 has 32 divisors (see below), whose sum is σ = 49595166720. Its totient is φ = 13842686160.

The previous prime is 30313131181. The next prime is 30313131209. The reversal of 30313131202 is 20213131303.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 30313131202.

It is not an unprimeable number, because it can be changed into a prime (30313131209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260893 + ... + 358735.

It is an arithmetic number, because the mean of its divisors is an integer number (1549848960).

Almost surely, 2^30313131202 is an apocalyptic number.

30313131202 is a deficient number, since it is larger than the sum of its proper divisors (19282035518).

30313131202 is a wasteful number, since it uses less digits than its factorization.

30313131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98158.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30313131202 its reverse (20213131303), we get a palindrome (50526262505).

The spelling of 30313131202 in words is "thirty billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred two".