1231404042430 has 16 divisors (see below), whose sum is σ = 2220579438480. Its totient is φ = 491661136512.

The previous prime is 1231404042409. The next prime is 1231404042493. The reversal of 1231404042430 is 342404041321.

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, 112554315 + ... + 112565254.

It is an arithmetic number, because the mean of its divisors is an integer number (138786214905).

Almost surely, 2^{1231404042430} is an apocalyptic number.

1231404042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231404042430 is a deficient number, since it is larger than the sum of its proper divisors (989175396050).

1231404042430 is a wasteful number, since it uses less digits than its factorization.

1231404042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225120123.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1231404042430 its reverse (342404041321), we get a palindrome (1573808083751).

The spelling of 1231404042430 in words is "one trillion, two hundred thirty-one billion, four hundred four million, forty-two thousand, four hundred thirty".