31453490503 has 2 divisors, whose sum is σ = 31453490504. Its totient is φ = 31453490502.

The previous prime is 31453490501. The next prime is 31453490507. The reversal of 31453490503 is 30509435413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31453490503 - 2¹ = 31453490501 is a prime.

It is a super-2 number, since 2×31453490503² (a number of 22 digits) contains 22 as substring.

Together with 31453490501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31453490501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15726745251 + 15726745252.

It is an arithmetic number, because the mean of its divisors is an integer number (15726745252).

Almost surely, 2^31453490503 is an apocalyptic number.

31453490503 is a deficient number, since it is larger than the sum of its proper divisors (1).

31453490503 is an equidigital number, since it uses as much as digits as its factorization.

31453490503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 31453490503 in words is "thirty-one billion, four hundred fifty-three million, four hundred ninety thousand, five hundred three".