31012144302 has 16 divisors (see below), whose sum is σ = 62404807680. Its totient is φ = 10273961592.

The previous prime is 31012144301. The next prime is 31012144307. The reversal of 31012144302 is 20344121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012144301) 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, 15853902 + ... + 15855857.

It is an arithmetic number, because the mean of its divisors is an integer number (3900300480).

Almost surely, 2^31012144302 is an apocalyptic number.

31012144302 is an abundant number, since it is smaller than the sum of its proper divisors (31392663378).

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

31012144302 is a wasteful number, since it uses less digits than its factorization.

31012144302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31709927.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31012144302 its reverse (20344121013), we get a palindrome (51356265315).

The spelling of 31012144302 in words is "thirty-one billion, twelve million, one hundred forty-four thousand, three hundred two".