431442102142 has 4 divisors (see below), whose sum is σ = 647163153216. Its totient is φ = 215721051070.

The previous prime is 431442102139. The next prime is 431442102173. The reversal of 431442102142 is 241201244134.

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

It is a super-2 number, since 2×431442102142² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431442102142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107860525534 + ... + 107860525537.

It is an arithmetic number, because the mean of its divisors is an integer number (161790788304).

Almost surely, 2^431442102142 is an apocalyptic number.

431442102142 is a deficient number, since it is larger than the sum of its proper divisors (215721051074).

431442102142 is a wasteful number, since it uses less digits than its factorization.

431442102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215721051073.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 431442102142 its reverse (241201244134), we get a palindrome (672643346276).

The spelling of 431442102142 in words is "four hundred thirty-one billion, four hundred forty-two million, one hundred two thousand, one hundred forty-two".