31055446504387 has 2 divisors, whose sum is σ = 31055446504388. Its totient is φ = 31055446504386.

The previous prime is 31055446504373. The next prime is 31055446504393. The reversal of 31055446504387 is 78340564455013.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31055446504387 - 2³¹ = 31053299020739 is a prime.

It is a super-2 number, since 2×31055446504387² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31055446504087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527723252193 + 15527723252194.

It is an arithmetic number, because the mean of its divisors is an integer number (15527723252194).

Almost surely, 2^{31055446504387} is an apocalyptic number.

31055446504387 is a deficient number, since it is larger than the sum of its proper divisors (1).

31055446504387 is an equidigital number, since it uses as much as digits as its factorization.

31055446504387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192000, while the sum is 55.

The spelling of 31055446504387 in words is "thirty-one trillion, fifty-five billion, four hundred forty-six million, five hundred four thousand, three hundred eighty-seven".