1401231111131 has 16 divisors (see below), whose sum is σ = 1479852518400. Its totient is φ = 1323104090400.

The previous prime is 1401231111053. The next prime is 1401231111157. The reversal of 1401231111131 is 1311111321041.

It is a cyclic number.

It is not a de Polignac number, because 1401231111131 - 2²⁶ = 1401164002267 is a prime.

It is a super-2 number, since 2×1401231111131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401231111031) 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, 7004150 + ... + 7201428.

It is an arithmetic number, because the mean of its divisors is an integer number (92490782400).

Almost surely, 2^{1401231111131} is an apocalyptic number.

1401231111131 is a deficient number, since it is larger than the sum of its proper divisors (78621407269).

1401231111131 is a wasteful number, since it uses less digits than its factorization.

1401231111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198530.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 1401231111131 its reverse (1311111321041), we get a palindrome (2712342432172).

The spelling of 1401231111131 in words is "one trillion, four hundred one billion, two hundred thirty-one million, one hundred eleven thousand, one hundred thirty-one".