213470388431 has 2 divisors, whose sum is σ = 213470388432. Its totient is φ = 213470388430.

The previous prime is 213470388403. The next prime is 213470388511. The reversal of 213470388431 is 134883074312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213470388431 - 2²⁶ = 213403279567 is a prime.

It is a super-2 number, since 2×213470388431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213470388931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106735194215 + 106735194216.

It is an arithmetic number, because the mean of its divisors is an integer number (106735194216).

Almost surely, 2^213470388431 is an apocalyptic number.

213470388431 is a deficient number, since it is larger than the sum of its proper divisors (1).

213470388431 is an equidigital number, since it uses as much as digits as its factorization.

213470388431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 213470388431 in words is "two hundred thirteen billion, four hundred seventy million, three hundred eighty-eight thousand, four hundred thirty-one".