31424020302 has 16 divisors (see below), whose sum is σ = 64546636752. Its totient is φ = 10191574080.

The previous prime is 31424020301. The next prime is 31424020349. The reversal of 31424020302 is 20302042413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424020301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70774599 + ... + 70775042.

It is an arithmetic number, because the mean of its divisors is an integer number (4034164797).

Almost surely, 2^31424020302 is an apocalyptic number.

31424020302 is an abundant number, since it is smaller than the sum of its proper divisors (33122616450).

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

31424020302 is a wasteful number, since it uses less digits than its factorization.

31424020302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141549683.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 31424020302 its reverse (20302042413), we get a palindrome (51726062715).

The spelling of 31424020302 in words is "thirty-one billion, four hundred twenty-four million, twenty thousand, three hundred two".