31020003407 has 2 divisors, whose sum is σ = 31020003408. Its totient is φ = 31020003406.

The previous prime is 31020003379. The next prime is 31020003449. The reversal of 31020003407 is 70430002013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020003407 - 2⁸ = 31020003151 is a prime.

It is a super-2 number, since 2×31020003407² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020005407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510001703 + 15510001704.

It is an arithmetic number, because the mean of its divisors is an integer number (15510001704).

Almost surely, 2^31020003407 is an apocalyptic number.

31020003407 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020003407 is an equidigital number, since it uses as much as digits as its factorization.

31020003407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The spelling of 31020003407 in words is "thirty-one billion, twenty million, three thousand, four hundred seven".