1400204102531 has 4 divisors (see below), whose sum is σ = 1507912110432. Its totient is φ = 1292496094632.

The previous prime is 1400204102483. The next prime is 1400204102537. The reversal of 1400204102531 is 1352014020041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400204102531 - 2²² = 1400199908227 is a prime.

It is a super-2 number, since 2×1400204102531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400204102497 and 1400204102506.

It is not an unprimeable number, because it can be changed into a prime (1400204102537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53854003931 + ... + 53854003956.

It is an arithmetic number, because the mean of its divisors is an integer number (376978027608).

Almost surely, 2^{1400204102531} is an apocalyptic number.

1400204102531 is a deficient number, since it is larger than the sum of its proper divisors (107708007901).

1400204102531 is a wasteful number, since it uses less digits than its factorization.

1400204102531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107708007900.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 1400204102531 its reverse (1352014020041), we get a palindrome (2752218122572).

The spelling of 1400204102531 in words is "one trillion, four hundred billion, two hundred four million, one hundred two thousand, five hundred thirty-one".