1331404031234 has 32 divisors (see below), whose sum is σ = 2097273980160. Its totient is φ = 633385771200.

The previous prime is 1331404031183. The next prime is 1331404031249. The reversal of 1331404031234 is 4321304041331.

It is a happy number.

It is a super-2 number, since 2×1331404031234² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331404031197 and 1331404031206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990974 + ... + 1909145.

It is an arithmetic number, because the mean of its divisors is an integer number (65539811880).

Almost surely, 2^{1331404031234} is an apocalyptic number.

1331404031234 is a deficient number, since it is larger than the sum of its proper divisors (765869948926).

1331404031234 is a wasteful number, since it uses less digits than its factorization.

1331404031234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900306.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1331404031234 its reverse (4321304041331), we get a palindrome (5652708072565).

The spelling of 1331404031234 in words is "one trillion, three hundred thirty-one billion, four hundred four million, thirty-one thousand, two hundred thirty-four".