2031111452 has 6 divisors (see below), whose sum is σ = 3554445048. Its totient is φ = 1015555724.

The previous prime is 2031111451. The next prime is 2031111461. The reversal of 2031111452 is 2541111302.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253888928 + ... + 253888935.

It is an arithmetic number, because the mean of its divisors is an integer number (592407508).

Almost surely, 2^2031111452 is an apocalyptic number.

It is an amenable number.

2031111452 is a deficient number, since it is larger than the sum of its proper divisors (1523333596).

2031111452 is a wasteful number, since it uses less digits than its factorization.

2031111452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507777867 (or 507777865 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2031111452 is about 45067.8538650333. The cubic root of 2031111452 is about 1266.4204600264.

Adding to 2031111452 its reverse (2541111302), we get a palindrome (4572222754).

The spelling of 2031111452 in words is "two billion, thirty-one million, one hundred eleven thousand, four hundred fifty-two".