431210021042434 has 4 divisors (see below), whose sum is σ = 646815031563654. Its totient is φ = 215605010521216.

The previous prime is 431210021042417. The next prime is 431210021042509. The reversal of 431210021042434 is 434240120012134.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 414472471808409 + 16737549234025 = 20358597^2 + 4091155^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431210021042396 and 431210021042405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107802505260607 + ... + 107802505260610.

Almost surely, 2^{431210021042434} is an apocalyptic number.

431210021042434 is a deficient number, since it is larger than the sum of its proper divisors (215605010521220).

431210021042434 is a wasteful number, since it uses less digits than its factorization.

431210021042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215605010521219.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 431210021042434 its reverse (434240120012134), we get a palindrome (865450141054568).

The spelling of 431210021042434 in words is "four hundred thirty-one trillion, two hundred ten billion, twenty-one million, forty-two thousand, four hundred thirty-four".