2140102431 has 8 divisors (see below), whose sum is σ = 3170522160. Its totient is φ = 1426734936.

The previous prime is 2140102429. The next prime is 2140102439. The reversal of 2140102431 is 1342010412.

2140102431 is a `hidden beast` number, since 21 + 401 + 0 + 243 + 1 = 666.

It is not a de Polignac number, because 2140102431 - 2¹ = 2140102429 is a prime.

It is a super-2 number, since 2×2140102431² = 9160076830344219522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140102439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39631500 + ... + 39631553.

It is an arithmetic number, because the mean of its divisors is an integer number (396315270).

Almost surely, 2^2140102431 is an apocalyptic number.

2140102431 is a deficient number, since it is larger than the sum of its proper divisors (1030419729).

2140102431 is an equidigital number, since it uses as much as digits as its factorization.

2140102431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79263062 (or 79263056 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2140102431 is about 46261.2411312105. The cubic root of 2140102431 is about 1288.6793027442.

Adding to 2140102431 its reverse (1342010412), we get a palindrome (3482112843).

The spelling of 2140102431 in words is "two billion, one hundred forty million, one hundred two thousand, four hundred thirty-one".