31214420020121 has 8 divisors (see below), whose sum is σ = 35077074002880. Its totient is φ = 27560558144592.

The previous prime is 31214420020013. The next prime is 31214420020123. The reversal of 31214420020121 is 12102002441213.

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 31214420020121 - 2¹⁸ = 31214419757977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31214420020123) 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, 52198026491 + ... + 52198027088.

It is an arithmetic number, because the mean of its divisors is an integer number (4384634250360).

Almost surely, 2^{31214420020121} is an apocalyptic number.

It is an amenable number.

31214420020121 is a deficient number, since it is larger than the sum of its proper divisors (3862653982759).

31214420020121 is a wasteful number, since it uses less digits than its factorization.

31214420020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104396053615.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31214420020121 its reverse (12102002441213), we get a palindrome (43316422461334).

The spelling of 31214420020121 in words is "thirty-one trillion, two hundred fourteen billion, four hundred twenty million, twenty thousand, one hundred twenty-one".