31020123020302 has 16 divisors (see below), whose sum is σ = 50334135465600. Its totient is φ = 14252778149472.

The previous prime is 31020123020233. The next prime is 31020123020303. The reversal of 31020123020302 is 20302032102013.

It is a self number, because there is not a number n which added to its sum of digits gives 31020123020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020123020303) 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, 2675065177 + ... + 2675076772.

It is an arithmetic number, because the mean of its divisors is an integer number (3145883466600).

Almost surely, 2^{31020123020302} is an apocalyptic number.

31020123020302 is a deficient number, since it is larger than the sum of its proper divisors (19314012445298).

31020123020302 is a wasteful number, since it uses less digits than its factorization.

31020123020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5350142187.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31020123020302 its reverse (20302032102013), we get a palindrome (51322155122315).

The spelling of 31020123020302 in words is "thirty-one trillion, twenty billion, one hundred twenty-three million, twenty thousand, three hundred two".