31120301012 has 24 divisors (see below), whose sum is σ = 57712593960. Its totient is φ = 14657162240.

The previous prime is 31120300979. The next prime is 31120301021. The reversal of 31120301012 is 21010302113.

It can be written as a sum of positive squares in 4 ways, for example, as 1217591236 + 29902709776 = 34894^2 + 172924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3266933 + ... + 3276444.

It is an arithmetic number, because the mean of its divisors is an integer number (2404691415).

Almost surely, 2^31120301012 is an apocalyptic number.

It is an amenable number.

31120301012 is a deficient number, since it is larger than the sum of its proper divisors (26592292948).

31120301012 is a wasteful number, since it uses less digits than its factorization.

31120301012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543451 (or 6543449 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31120301012 its reverse (21010302113), we get a palindrome (52130603125).

The spelling of 31120301012 in words is "thirty-one billion, one hundred twenty million, three hundred one thousand, twelve".