140424120031 has 4 divisors (see below), whose sum is σ = 151225975432. Its totient is φ = 129622264632.

The previous prime is 140424119981. The next prime is 140424120037. The reversal of 140424120031 is 130021424041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140424120031 - 2⁹ = 140424119519 is a prime.

It is a super-2 number, since 2×140424120031² (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 = 140424119984 and 140424120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424120037) 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, 5400927681 + ... + 5400927706.

It is an arithmetic number, because the mean of its divisors is an integer number (37806493858).

Almost surely, 2^140424120031 is an apocalyptic number.

140424120031 is a deficient number, since it is larger than the sum of its proper divisors (10801855401).

140424120031 is a wasteful number, since it uses less digits than its factorization.

140424120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10801855400.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 140424120031 its reverse (130021424041), we get a palindrome (270445544072).

The spelling of 140424120031 in words is "one hundred forty billion, four hundred twenty-four million, one hundred twenty thousand, thirty-one".