2340142531 has 12 divisors (see below), whose sum is σ = 2519971432. Its totient is φ = 2172296448.

The previous prime is 2340142523. The next prime is 2340142591. The reversal of 2340142531 is 1352410432.

It is not a de Polignac number, because 2340142531 - 2³ = 2340142523 is a prime.

It is a super-2 number, since 2×2340142531² = 10952534130790171922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2340142496 and 2340142505.

It is not an unprimeable number, because it can be changed into a prime (2340142591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34365 + ... + 76558.

Almost surely, 2^2340142531 is an apocalyptic number.

2340142531 is a deficient number, since it is larger than the sum of its proper divisors (179828901).

2340142531 is a wasteful number, since it uses less digits than its factorization.

2340142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111030 (or 111013 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2340142531 is about 48375.0197002544. The cubic root of 2340142531 is about 1327.6413490147.

Adding to 2340142531 its reverse (1352410432), we get a palindrome (3692552963).

The spelling of 2340142531 in words is "two billion, three hundred forty million, one hundred forty-two thousand, five hundred thirty-one".