31410121003081 has 2 divisors, whose sum is σ = 31410121003082. Its totient is φ = 31410121003080.

The previous prime is 31410121003043. The next prime is 31410121003109. The reversal of 31410121003081 is 18030012101413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17952668969481 + 13457452033600 = 4237059^2 + 3668440^2 .

It is a cyclic number.

It is not a de Polignac number, because 31410121003081 - 2²¹ = 31410118905929 is a prime.

It is a super-2 number, since 2×31410121003081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31410121003181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15705060501540 + 15705060501541.

It is an arithmetic number, because the mean of its divisors is an integer number (15705060501541).

Almost surely, 2^{31410121003081} is an apocalyptic number.

It is an amenable number.

31410121003081 is a deficient number, since it is larger than the sum of its proper divisors (1).

31410121003081 is an equidigital number, since it uses as much as digits as its factorization.

31410121003081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 31410121003081 its reverse (18030012101413), we get a palindrome (49440133104494).

The spelling of 31410121003081 in words is "thirty-one trillion, four hundred ten billion, one hundred twenty-one million, three thousand, eighty-one".