2013402431 has 4 divisors (see below), whose sum is σ = 2119371000. Its totient is φ = 1907433864.

The previous prime is 2013402427. The next prime is 2013402439. The reversal of 2013402431 is 1342043102.

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

It is not a de Polignac number, because 2013402431 - 2² = 2013402427 is a prime.

It is a super-2 number, since 2×2013402431² = 8107578698313419522, 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 (2013402439) 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, 52984256 + ... + 52984293.

It is an arithmetic number, because the mean of its divisors is an integer number (529842750).

Almost surely, 2^2013402431 is an apocalyptic number.

2013402431 is a deficient number, since it is larger than the sum of its proper divisors (105968569).

2013402431 is a wasteful number, since it uses less digits than its factorization.

2013402431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105968568.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2013402431 is about 44870.9530877159. The cubic root of 2013402431 is about 1262.7291208643.

Adding to 2013402431 its reverse (1342043102), we get a palindrome (3355445533).

The spelling of 2013402431 in words is "two billion, thirteen million, four hundred two thousand, four hundred thirty-one".