2113031412 has 18 divisors (see below), whose sum is σ = 5341273938. Its totient is φ = 704343792.

The previous prime is 2113031383. The next prime is 2113031423. The reversal of 2113031412 is 2141303112.

It can be written as a sum of positive squares in only one way, i.e., 1183635216 + 929396196 = 34404^2 + 30486^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29347623 + ... + 29347694.

It is an arithmetic number, because the mean of its divisors is an integer number (296737441).

Almost surely, 2^2113031412 is an apocalyptic number.

It is an amenable number.

2113031412 is an abundant number, since it is smaller than the sum of its proper divisors (3228242526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113031412 is a wasteful number, since it uses less digits than its factorization.

2113031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58695327 (or 58695322 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2113031412 is about 45967.7214140531. The cubic root of 2113031412 is about 1283.2225546626. Note that the first 3 decimals are identical.

Adding to 2113031412 its reverse (2141303112), we get a palindrome (4254334524).

The spelling of 2113031412 in words is "two billion, one hundred thirteen million, thirty-one thousand, four hundred twelve".