31414402032121 has 4 divisors (see below), whose sum is σ = 31415636269732. Its totient is φ = 31413167794512.

The previous prime is 31414402032049. The next prime is 31414402032151. The reversal of 31414402032121 is 12123020441413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20344068993600 + 11070333038521 = 4510440^2 + 3327211^2 .

It is a cyclic number.

It is not a de Polignac number, because 31414402032121 - 2¹⁷ = 31414401901049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31414402032121.

It is not an unprimeable number, because it can be changed into a prime (31414402032151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617080626 + ... + 617131531.

It is an arithmetic number, because the mean of its divisors is an integer number (7853909067433).

Almost surely, 2^{31414402032121} is an apocalyptic number.

It is an amenable number.

31414402032121 is a deficient number, since it is larger than the sum of its proper divisors (1234237611).

31414402032121 is a wasteful number, since it uses less digits than its factorization.

31414402032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234237610.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 31414402032121 its reverse (12123020441413), we get a palindrome (43537422473534).

The spelling of 31414402032121 in words is "thirty-one trillion, four hundred fourteen billion, four hundred two million, thirty-two thousand, one hundred twenty-one".