31120102 has 8 divisors (see below), whose sum is σ = 50270976. Its totient is φ = 14363112.

The previous prime is 31120091. The next prime is 31120109. The reversal of 31120102 is 20102113.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598438 + ... + 598489.

It is an arithmetic number, because the mean of its divisors is an integer number (6283872).

Almost surely, 2^31120102 is an apocalyptic number.

31120102 is a deficient number, since it is larger than the sum of its proper divisors (19150874).

31120102 is a wasteful number, since it uses less digits than its factorization.

31120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196942.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 31120102 is about 5578.5394145780. The cubic root of 31120102 is about 314.5432264333.

Adding to 31120102 its reverse (20102113), we get a palindrome (51222215).

The spelling of 31120102 in words is "thirty-one million, one hundred twenty thousand, one hundred two".