31012432102 has 8 divisors (see below), whose sum is σ = 46540382112. Its totient is φ = 15498971400.

The previous prime is 31012432097. The next prime is 31012432181. The reversal of 31012432102 is 20123421013.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31012432102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3616974 + ... + 3625537.

It is an arithmetic number, because the mean of its divisors is an integer number (5817547764).

Almost surely, 2^31012432102 is an apocalyptic number.

31012432102 is a deficient number, since it is larger than the sum of its proper divisors (15527950010).

31012432102 is a wasteful number, since it uses less digits than its factorization.

31012432102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244654.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31012432102 its reverse (20123421013), we get a palindrome (51135853115).

The spelling of 31012432102 in words is "thirty-one billion, twelve million, four hundred thirty-two thousand, one hundred two".