1401431031 has 64 divisors (see below), whose sum is σ = 2787671040. Its totient is φ = 672001920.

The previous prime is 1401430993. The next prime is 1401431063. The reversal of 1401431031 is 1301341041.

It is not a de Polignac number, because 1401431031 - 2⁶ = 1401430967 is a prime.

It is a super-2 number, since 2×1401431031² = 3928017869299445922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1401430995 and 1401431013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401430031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1101 + ... + 52953.

It is an arithmetic number, because the mean of its divisors is an integer number (43557360).

Almost surely, 2^1401431031 is an apocalyptic number.

1401431031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1401431031 is a deficient number, since it is larger than the sum of its proper divisors (1386240009).

1401431031 is a wasteful number, since it uses less digits than its factorization.

1401431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51893 (or 51887 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1401431031 is about 37435.6919396450. The cubic root of 1401431031 is about 1119.0699738459.

Adding to 1401431031 its reverse (1301341041), we get a palindrome (2702772072).

It can be divided in two parts, 14014 and 31031, that multiplied together give a palindrome (434868434).

The spelling of 1401431031 in words is "one billion, four hundred one million, four hundred thirty-one thousand, thirty-one".