140210131431 has 4 divisors (see below), whose sum is σ = 186946841912. Its totient is φ = 93473420952.

The previous prime is 140210131427. The next prime is 140210131459. The reversal of 140210131431 is 134131012041.

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

It is not a de Polignac number, because 140210131431 - 2² = 140210131427 is a prime.

It is a super-2 number, since 2×140210131431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140210131398 and 140210131407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140210131471) 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, 23368355236 + ... + 23368355241.

It is an arithmetic number, because the mean of its divisors is an integer number (46736710478).

Almost surely, 2^140210131431 is an apocalyptic number.

140210131431 is a deficient number, since it is larger than the sum of its proper divisors (46736710481).

140210131431 is an equidigital number, since it uses as much as digits as its factorization.

140210131431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46736710480.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 140210131431 its reverse (134131012041), we get a palindrome (274341143472).

The spelling of 140210131431 in words is "one hundred forty billion, two hundred ten million, one hundred thirty-one thousand, four hundred thirty-one".