2030400031 has 4 divisors (see below), whose sum is σ = 2214981864. Its totient is φ = 1845818200.

The previous prime is 2030400017. The next prime is 2030400037. The reversal of 2030400031 is 1300040302.

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 2030400031 - 2⁵ = 2030399999 is a prime.

It is a super-2 number, since 2×2030400031² = 8245048571769601922, 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 = 2030399984 and 2030400020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030400037) 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, 92290900 + ... + 92290921.

It is an arithmetic number, because the mean of its divisors is an integer number (553745466).

Almost surely, 2^2030400031 is an apocalyptic number.

2030400031 is a deficient number, since it is larger than the sum of its proper divisors (184581833).

2030400031 is a wasteful number, since it uses less digits than its factorization.

2030400031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184581832.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2030400031 is about 45059.9603972307. The cubic root of 2030400031 is about 1266.2725831385.

Adding to 2030400031 its reverse (1300040302), we get a palindrome (3330440333).

The spelling of 2030400031 in words is "two billion, thirty million, four hundred thousand, thirty-one".