31404358241 has 2 divisors, whose sum is σ = 31404358242. Its totient is φ = 31404358240.

The previous prime is 31404358201. The next prime is 31404358253. The reversal of 31404358241 is 14285340413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30793230400 + 611127841 = 175480^2 + 24721^2 .

It is a cyclic number.

It is not a de Polignac number, because 31404358241 - 2⁶ = 31404358177 is a prime.

It is a super-2 number, since 2×31404358241² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31404358201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15702179120 + 15702179121.

It is an arithmetic number, because the mean of its divisors is an integer number (15702179121).

Almost surely, 2^31404358241 is an apocalyptic number.

It is an amenable number.

31404358241 is a deficient number, since it is larger than the sum of its proper divisors (1).

31404358241 is an equidigital number, since it uses as much as digits as its factorization.

31404358241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 31404358241 its reverse (14285340413), we get a palindrome (45689698654).

The spelling of 31404358241 in words is "thirty-one billion, four hundred four million, three hundred fifty-eight thousand, two hundred forty-one".