31212142401 has 8 divisors (see below), whose sum is σ = 45399479904. Its totient is φ = 18916449920.

The previous prime is 31212142397. The next prime is 31212142421. The reversal of 31212142401 is 10424121213.

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

It is a cyclic number.

It is not a de Polignac number, because 31212142401 - 2² = 31212142397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31212142421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472911216 + ... + 472911281.

It is an arithmetic number, because the mean of its divisors is an integer number (5674934988).

Almost surely, 2^31212142401 is an apocalyptic number.

It is an amenable number.

31212142401 is a deficient number, since it is larger than the sum of its proper divisors (14187337503).

31212142401 is a wasteful number, since it uses less digits than its factorization.

31212142401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945822511.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 31212142401 its reverse (10424121213), we get a palindrome (41636263614).

The spelling of 31212142401 in words is "thirty-one billion, two hundred twelve million, one hundred forty-two thousand, four hundred one".