31000212302 has 16 divisors (see below), whose sum is σ = 48470994000. Its totient is φ = 14851374720.

The previous prime is 31000212301. The next prime is 31000212307. The reversal of 31000212302 is 20321200013.

It is a happy number.

It is a super-2 number, since 2×31000212302² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000212301) 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, 2032427 + ... + 2047622.

It is an arithmetic number, because the mean of its divisors is an integer number (3029437125).

Almost surely, 2^31000212302 is an apocalyptic number.

31000212302 is a deficient number, since it is larger than the sum of its proper divisors (17470781698).

31000212302 is a wasteful number, since it uses less digits than its factorization.

31000212302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080211.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31000212302 its reverse (20321200013), we get a palindrome (51321412315).

The spelling of 31000212302 in words is "thirty-one billion, two hundred twelve thousand, three hundred two".