2102312144 has 10 divisors (see below), whose sum is σ = 4073229810. Its totient is φ = 1051156064.

The previous prime is 2102312101. The next prime is 2102312161. The reversal of 2102312144 is 4412132012.

It can be written as a sum of positive squares in only one way, i.e., 1614432400 + 487879744 = 40180^2 + 22088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65697239 + ... + 65697270.

It is an arithmetic number, because the mean of its divisors is an integer number (407322981).

Almost surely, 2^2102312144 is an apocalyptic number.

It is an amenable number.

2102312144 is a deficient number, since it is larger than the sum of its proper divisors (1970917666).

2102312144 is a wasteful number, since it uses less digits than its factorization.

2102312144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131394517 (or 131394511 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2102312144 is about 45850.9775686408. The cubic root of 2102312144 is about 1281.0489741037.

Adding to 2102312144 its reverse (4412132012), we get a palindrome (6514444156).

The spelling of 2102312144 in words is "two billion, one hundred two million, three hundred twelve thousand, one hundred forty-four".