1400431240131 has 64 divisors (see below), whose sum is σ = 2475510875136. Its totient is φ = 681763737600.

The previous prime is 1400431240123. The next prime is 1400431240133. The reversal of 1400431240131 is 1310421340041.

It is not a de Polignac number, because 1400431240131 - 2³ = 1400431240123 is a prime.

It is a super-2 number, since 2×1400431240131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400431240133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149721 + ... + 1680261.

It is an arithmetic number, because the mean of its divisors is an integer number (38679857424).

Almost surely, 2^{1400431240131} is an apocalyptic number.

1400431240131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1400431240131 is a deficient number, since it is larger than the sum of its proper divisors (1075079635005).

1400431240131 is a wasteful number, since it uses less digits than its factorization.

1400431240131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530812.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1400431240131 its reverse (1310421340041), we get a palindrome (2710852580172).

The spelling of 1400431240131 in words is "one trillion, four hundred billion, four hundred thirty-one million, two hundred forty thousand, one hundred thirty-one".