431131142 has 16 divisors (see below), whose sum is σ = 699042960. Its totient is φ = 198240672.

The previous prime is 431131111. The next prime is 431131153. The reversal of 431131142 is 241131134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23828 + ... + 37815.

It is an arithmetic number, because the mean of its divisors is an integer number (43690185).

Almost surely, 2^431131142 is an apocalyptic number.

431131142 is a deficient number, since it is larger than the sum of its proper divisors (267911818).

431131142 is a wasteful number, since it uses less digits than its factorization.

431131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61927.

The product of its digits is 288, while the sum is 20.

The square root of 431131142 is about 20763.6976957381. The cubic root of 431131142 is about 755.4454877133.

Adding to 431131142 its reverse (241131134), we get a palindrome (672262276).

It can be divided in two parts, 4311 and 31142, that added together give a palindrome (35453).

The spelling of 431131142 in words is "four hundred thirty-one million, one hundred thirty-one thousand, one hundred forty-two".