2031111453 has 32 divisors (see below), whose sum is σ = 3141331200. Its totient is φ = 1143369216.

The previous prime is 2031111451. The next prime is 2031111461. The reversal of 2031111453 is 3541111302.

It is not a de Polignac number, because 2031111453 - 2¹ = 2031111451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031111451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545763 + ... + 549471.

It is an arithmetic number, because the mean of its divisors is an integer number (98166600).

Almost surely, 2^2031111453 is an apocalyptic number.

It is an amenable number.

2031111453 is a deficient number, since it is larger than the sum of its proper divisors (1110219747).

2031111453 is a wasteful number, since it uses less digits than its factorization.

2031111453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2031111453 is about 45067.8538761277. The cubic root of 2031111453 is about 1266.4204602342.

Adding to 2031111453 its reverse (3541111302), we get a palindrome (5572222755).

The spelling of 2031111453 in words is "two billion, thirty-one million, one hundred eleven thousand, four hundred fifty-three".