31212101012102 has 8 divisors (see below), whose sum is σ = 46821760448736. Its totient is φ = 15604847529192.

The previous prime is 31212101012077. The next prime is 31212101012143. The reversal of 31212101012102 is 20121010121213.

It is a happy number.

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, 601455998 + ... + 601507889.

It is an arithmetic number, because the mean of its divisors is an integer number (5852720056092).

Almost surely, 2^{31212101012102} is an apocalyptic number.

31212101012102 is a deficient number, since it is larger than the sum of its proper divisors (15609659436634).

31212101012102 is a wasteful number, since it uses less digits than its factorization.

31212101012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202976862.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31212101012102 its reverse (20121010121213), we get a palindrome (51333111133315).

The spelling of 31212101012102 in words is "thirty-one trillion, two hundred twelve billion, one hundred one million, twelve thousand, one hundred two".