31201112102 has 8 divisors (see below), whose sum is σ = 47265051312. Its totient is φ = 15446095000.

The previous prime is 31201112087. The next prime is 31201112119. The reversal of 31201112102 is 20121110213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77230274 + ... + 77230677.

It is an arithmetic number, because the mean of its divisors is an integer number (5908131414).

Almost surely, 2^31201112102 is an apocalyptic number.

31201112102 is a deficient number, since it is larger than the sum of its proper divisors (16063939210).

31201112102 is a wasteful number, since it uses less digits than its factorization.

31201112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154461054.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31201112102 its reverse (20121110213), we get a palindrome (51322222315).

It can be divided in two parts, 3120111 and 2102, that added together give a palindrome (3122213).

The spelling of 31201112102 in words is "thirty-one billion, two hundred one million, one hundred twelve thousand, one hundred two".