31331422044401 has 8 divisors (see below), whose sum is σ = 31568439701064. Its totient is φ = 31094524984320.

The previous prime is 31331422044383. The next prime is 31331422044413. The reversal of 31331422044401 is 10444022413313.

It can be written as a sum of positive squares in 4 ways, for example, as 1277442457600 + 30053979586801 = 1130240^2 + 5482151^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31331422044401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31331422049401) 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, 29627540 + ... + 30666821.

It is an arithmetic number, because the mean of its divisors is an integer number (3946054962633).

Almost surely, 2^{31331422044401} is an apocalyptic number.

It is an amenable number.

31331422044401 is a deficient number, since it is larger than the sum of its proper divisors (237017656663).

31331422044401 is a wasteful number, since it uses less digits than its factorization.

31331422044401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60298291.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31331422044401 its reverse (10444022413313), we get a palindrome (41775444457714).

The spelling of 31331422044401 in words is "thirty-one trillion, three hundred thirty-one billion, four hundred twenty-two million, forty-four thousand, four hundred one".