31213322102 has 8 divisors (see below), whose sum is σ = 46922435256. Its totient is φ = 15572510352.

The previous prime is 31213322089. The next prime is 31213322111. The reversal of 31213322102 is 20122331213.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17074208 + ... + 17076035.

It is an arithmetic number, because the mean of its divisors is an integer number (5865304407).

Almost surely, 2^31213322102 is an apocalyptic number.

31213322102 is a deficient number, since it is larger than the sum of its proper divisors (15709113154).

31213322102 is a wasteful number, since it uses less digits than its factorization.

31213322102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34150702.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31213322102 its reverse (20122331213), we get a palindrome (51335653315).

The spelling of 31213322102 in words is "thirty-one billion, two hundred thirteen million, three hundred twenty-two thousand, one hundred two".