31056102 has 144 divisors (see below), whose sum is σ = 89152560. Its totient is φ = 7983360.

The previous prime is 31056101. The next prime is 31056107. The reversal of 31056102 is 20165013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31056101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 320118 + ... + 320214.

It is an arithmetic number, because the mean of its divisors is an integer number (619115).

Almost surely, 2^31056102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31056102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44576280).

31056102 is an abundant number, since it is smaller than the sum of its proper divisors (58096458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31056102 is a wasteful number, since it uses less digits than its factorization.

31056102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 31056102 is about 5572.8001937984. The cubic root of 31056102 is about 314.3274539802.

The spelling of 31056102 in words is "thirty-one million, fifty-six thousand, one hundred two".