31463451031 has 2 divisors, whose sum is σ = 31463451032. Its totient is φ = 31463451030.

The previous prime is 31463451011. The next prime is 31463451037. The reversal of 31463451031 is 13015436413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31463451031 - 2⁵ = 31463450999 is a prime.

It is a super-2 number, since 2×31463451031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31463450984 and 31463451002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31463451037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15731725515 + 15731725516.

It is an arithmetic number, because the mean of its divisors is an integer number (15731725516).

Almost surely, 2^31463451031 is an apocalyptic number.

31463451031 is a deficient number, since it is larger than the sum of its proper divisors (1).

31463451031 is an equidigital number, since it uses as much as digits as its factorization.

31463451031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 31463451031 its reverse (13015436413), we get a palindrome (44478887444).

The spelling of 31463451031 in words is "thirty-one billion, four hundred sixty-three million, four hundred fifty-one thousand, thirty-one".