140321023131 has 4 divisors (see below), whose sum is σ = 187094697512. Its totient is φ = 93547348752.

The previous prime is 140321023099. The next prime is 140321023147. The reversal of 140321023131 is 131320123041.

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

It is not a de Polignac number, because 140321023131 - 2⁵ = 140321023099 is a prime.

It is a super-2 number, since 2×140321023131² (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 = 140321023098 and 140321023107.

It is not an unprimeable number, because it can be changed into a prime (140321023231) 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, 23386837186 + ... + 23386837191.

It is an arithmetic number, because the mean of its divisors is an integer number (46773674378).

Almost surely, 2^140321023131 is an apocalyptic number.

140321023131 is a deficient number, since it is larger than the sum of its proper divisors (46773674381).

140321023131 is an equidigital number, since it uses as much as digits as its factorization.

140321023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46773674380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 140321023131 its reverse (131320123041), we get a palindrome (271641146172).

The spelling of 140321023131 in words is "one hundred forty billion, three hundred twenty-one million, twenty-three thousand, one hundred thirty-one".