31040031403 has 2 divisors, whose sum is σ = 31040031404. Its totient is φ = 31040031402.

The previous prime is 31040031311. The next prime is 31040031437. The reversal of 31040031403 is 30413004013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31040031403 - 2¹³ = 31040023211 is a prime.

It is a super-2 number, since 2×31040031403² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31040001403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520015701 + 15520015702.

It is an arithmetic number, because the mean of its divisors is an integer number (15520015702).

Almost surely, 2^31040031403 is an apocalyptic number.

31040031403 is a deficient number, since it is larger than the sum of its proper divisors (1).

31040031403 is an equidigital number, since it uses as much as digits as its factorization.

31040031403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31040031403 its reverse (30413004013), we get a palindrome (61453035416).

The spelling of 31040031403 in words is "thirty-one billion, forty million, thirty-one thousand, four hundred three".