2040120431 has 4 divisors (see below), whose sum is σ = 2040486600. Its totient is φ = 2039754264.

The previous prime is 2040120427. The next prime is 2040120437. The reversal of 2040120431 is 1340210402.

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 2040120431 - 2² = 2040120427 is a prime.

It is a super-2 number, since 2×2040120431² = 8324182745967251522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040120437) 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, 174596 + ... + 185913.

It is an arithmetic number, because the mean of its divisors is an integer number (510121650).

Almost surely, 2^2040120431 is an apocalyptic number.

2040120431 is a deficient number, since it is larger than the sum of its proper divisors (366169).

2040120431 is an equidigital number, since it uses as much as digits as its factorization.

2040120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366168.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2040120431 is about 45167.6923364477. The cubic root of 2040120431 is about 1268.2900978472.

Adding to 2040120431 its reverse (1340210402), we get a palindrome (3380330833).

The spelling of 2040120431 in words is "two billion, forty million, one hundred twenty thousand, four hundred thirty-one".