423155251213 has 4 divisors (see below), whose sum is σ = 423156581980. Its totient is φ = 423153920448.

The previous prime is 423155251153. The next prime is 423155251219. The reversal of 423155251213 is 312152551324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2321505124 + 420833746089 = 48182^2 + 648717^2 .

It is a cyclic number.

It is not a de Polignac number, because 423155251213 - 2³³ = 414565316621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423155251219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122803 + ... + 928111.

It is an arithmetic number, because the mean of its divisors is an integer number (105789145495).

Almost surely, 2^423155251213 is an apocalyptic number.

It is an amenable number.

423155251213 is a deficient number, since it is larger than the sum of its proper divisors (1330767).

423155251213 is an equidigital number, since it uses as much as digits as its factorization.

423155251213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330766.

The product of its digits is 36000, while the sum is 34.

The spelling of 423155251213 in words is "four hundred twenty-three billion, one hundred fifty-five million, two hundred fifty-one thousand, two hundred thirteen".