31423130693 has 2 divisors, whose sum is σ = 31423130694. Its totient is φ = 31423130692.

The previous prime is 31423130681. The next prime is 31423130723. The reversal of 31423130693 is 39603132413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28974167524 + 2448963169 = 170218^2 + 49487^2 .

It is a cyclic number.

It is not a de Polignac number, because 31423130693 - 2¹⁴ = 31423114309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31423130603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711565346 + 15711565347.

It is an arithmetic number, because the mean of its divisors is an integer number (15711565347).

Almost surely, 2^31423130693 is an apocalyptic number.

It is an amenable number.

31423130693 is a deficient number, since it is larger than the sum of its proper divisors (1).

31423130693 is an equidigital number, since it uses as much as digits as its factorization.

31423130693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 31423130693 in words is "thirty-one billion, four hundred twenty-three million, one hundred thirty thousand, six hundred ninety-three".