31042421022469 has 2 divisors, whose sum is σ = 31042421022470. Its totient is φ = 31042421022468.

The previous prime is 31042421022377. The next prime is 31042421022479. The reversal of 31042421022469 is 96422012424013.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21567339724225 + 9475081298244 = 4644065^2 + 3078162^2 .

It is a cyclic number.

It is not a de Polignac number, because 31042421022469 - 2²³ = 31042412633861 is a prime.

It is a super-2 number, since 2×31042421022469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31042421022479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521210511234 + 15521210511235.

It is an arithmetic number, because the mean of its divisors is an integer number (15521210511235).

Almost surely, 2^{31042421022469} is an apocalyptic number.

It is an amenable number.

31042421022469 is a deficient number, since it is larger than the sum of its proper divisors (1).

31042421022469 is an equidigital number, since it uses as much as digits as its factorization.

31042421022469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 31042421022469 in words is "thirty-one trillion, forty-two billion, four hundred twenty-one million, twenty-two thousand, four hundred sixty-nine".