31403654143 has 2 divisors, whose sum is σ = 31403654144. Its totient is φ = 31403654142.

The previous prime is 31403654099. The next prime is 31403654159. The reversal of 31403654143 is 34145630413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31403654143 is a prime.

It is a super-2 number, since 2×31403654143² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31403654099 and 31403654108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31403654173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15701827071 + 15701827072.

It is an arithmetic number, because the mean of its divisors is an integer number (15701827072).

Almost surely, 2^31403654143 is an apocalyptic number.

31403654143 is a deficient number, since it is larger than the sum of its proper divisors (1).

31403654143 is an equidigital number, since it uses as much as digits as its factorization.

31403654143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 31403654143 in words is "thirty-one billion, four hundred three million, six hundred fifty-four thousand, one hundred forty-three".