31109149003 has 2 divisors, whose sum is σ = 31109149004. Its totient is φ = 31109149002.

The previous prime is 31109148979. The next prime is 31109149061. The reversal of 31109149003 is 30094190113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31109149003 - 2²¹ = 31107051851 is a prime.

It is not a weakly prime, because it can be changed into another prime (31109141003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15554574501 + 15554574502.

It is an arithmetic number, because the mean of its divisors is an integer number (15554574502).

Almost surely, 2^31109149003 is an apocalyptic number.

31109149003 is a deficient number, since it is larger than the sum of its proper divisors (1).

31109149003 is an equidigital number, since it uses as much as digits as its factorization.

31109149003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 31109149003 in words is "thirty-one billion, one hundred nine million, one hundred forty-nine thousand, three".