425434044131 has 4 divisors (see below), whose sum is σ = 434485832352. Its totient is φ = 416382255912.

The previous prime is 425434044127. The next prime is 425434044143. The reversal of 425434044131 is 131440434524.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 425434044131 - 2² = 425434044127 is a prime.

It is a super-2 number, since 2×425434044131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425434044091 and 425434044100.

It is not an unprimeable number, because it can be changed into a prime (425434044121) 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, 4525894040 + ... + 4525894133.

It is an arithmetic number, because the mean of its divisors is an integer number (108621458088).

Almost surely, 2^425434044131 is an apocalyptic number.

425434044131 is a deficient number, since it is larger than the sum of its proper divisors (9051788221).

425434044131 is an equidigital number, since it uses as much as digits as its factorization.

425434044131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9051788220.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 425434044131 its reverse (131440434524), we get a palindrome (556874478655).

The spelling of 425434044131 in words is "four hundred twenty-five billion, four hundred thirty-four million, forty-four thousand, one hundred thirty-one".