31102102 has 8 divisors (see below), whose sum is σ = 46717056. Its totient is φ = 15529752.

The previous prime is 31102087. The next prime is 31102121. The reversal of 31102102 is 20120113.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8758 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (5839632).

Almost surely, 2^31102102 is an apocalyptic number.

31102102 is a deficient number, since it is larger than the sum of its proper divisors (15614954).

31102102 is a wasteful number, since it uses less digits than its factorization.

31102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21302.

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

The square root of 31102102 is about 5576.9258557022. The cubic root of 31102102 is about 314.4825703550.

Adding to 31102102 its reverse (20120113), we get a palindrome (51222215).

It can be divided in two parts, 3 and 1102102, that multiplied together give a triangular number (3306306 = T₂₅₇₁).

The spelling of 31102102 in words is "thirty-one million, one hundred two thousand, one hundred two".