31434321407 has 2 divisors, whose sum is σ = 31434321408. Its totient is φ = 31434321406.

The previous prime is 31434321397. The next prime is 31434321419. The reversal of 31434321407 is 70412343413.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31434321407 - 2⁸ = 31434321151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31434321907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15717160703 + 15717160704.

It is an arithmetic number, because the mean of its divisors is an integer number (15717160704).

Almost surely, 2^31434321407 is an apocalyptic number.

31434321407 is a deficient number, since it is larger than the sum of its proper divisors (1).

31434321407 is an equidigital number, since it uses as much as digits as its factorization.

31434321407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 31434321407 in words is "thirty-one billion, four hundred thirty-four million, three hundred twenty-one thousand, four hundred seven".