31430044234421 has 8 divisors (see below), whose sum is σ = 35920138977984. Its totient is φ = 26939971596960.

The previous prime is 31430044234399. The next prime is 31430044234423. The reversal of 31430044234421 is 12443244003413.

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 31430044234421 - 2²² = 31430040040117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430044234423) 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, 2358800 + ... + 8271881.

It is an arithmetic number, because the mean of its divisors is an integer number (4490017372248).

Almost surely, 2^{31430044234421} is an apocalyptic number.

It is an amenable number.

31430044234421 is a deficient number, since it is larger than the sum of its proper divisors (4490094743563).

31430044234421 is a wasteful number, since it uses less digits than its factorization.

31430044234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053051.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 31430044234421 its reverse (12443244003413), we get a palindrome (43873288237834).

The spelling of 31430044234421 in words is "thirty-one trillion, four hundred thirty billion, forty-four million, two hundred thirty-four thousand, four hundred twenty-one".