31321302103102 has 16 divisors (see below), whose sum is σ = 51261292007424. Its totient is φ = 14234663223000.

The previous prime is 31321302103073. The next prime is 31321302103127. The reversal of 31321302103102 is 20130120312313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114474174 + ... + 114747457.

It is an arithmetic number, because the mean of its divisors is an integer number (3203830750464).

Almost surely, 2^{31321302103102} is an apocalyptic number.

31321302103102 is a deficient number, since it is larger than the sum of its proper divisors (19939989904322).

31321302103102 is a wasteful number, since it uses less digits than its factorization.

31321302103102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229227855.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31321302103102 its reverse (20130120312313), we get a palindrome (51451422415415).

The spelling of 31321302103102 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred two million, one hundred three thousand, one hundred two".