431201426530213 has 4 divisors (see below), whose sum is σ = 435017368358028. Its totient is φ = 427385484702400.

The previous prime is 431201426530187. The next prime is 431201426530241. The reversal of 431201426530213 is 312035624102134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141024578892129 + 290176847638084 = 11875377^2 + 17034578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431201426530213 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 (431201726530213) 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, 1907970913738 + ... + 1907970913963.

It is an arithmetic number, because the mean of its divisors is an integer number (108754342089507).

Almost surely, 2^{431201426530213} is an apocalyptic number.

It is an amenable number.

431201426530213 is a deficient number, since it is larger than the sum of its proper divisors (3815941827815).

431201426530213 is a wasteful number, since it uses less digits than its factorization.

431201426530213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815941827814.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 431201426530213 in words is "four hundred thirty-one trillion, two hundred one billion, four hundred twenty-six million, five hundred thirty thousand, two hundred thirteen".