1200401431331 has 16 divisors (see below), whose sum is σ = 1233755560800. Its totient is φ = 1167244615680.

The previous prime is 1200401431261. The next prime is 1200401431391. The reversal of 1200401431331 is 1331341040021.

It is a cyclic number.

It is not a de Polignac number, because 1200401431331 - 2³⁰ = 1199327689507 is a prime.

It is a super-2 number, since 2×1200401431331² (a number of 25 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 = 1200401431297 and 1200401431306.

It is not an unprimeable number, because it can be changed into a prime (1200401431391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31865195 + ... + 31902843.

It is an arithmetic number, because the mean of its divisors is an integer number (77109722550).

Almost surely, 2^{1200401431331} is an apocalyptic number.

1200401431331 is a deficient number, since it is larger than the sum of its proper divisors (33354129469).

1200401431331 is a wasteful number, since it uses less digits than its factorization.

1200401431331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40246.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1200401431331 its reverse (1331341040021), we get a palindrome (2531742471352).

The spelling of 1200401431331 in words is "one trillion, two hundred billion, four hundred one million, four hundred thirty-one thousand, three hundred thirty-one".