2102512143524 has 12 divisors (see below), whose sum is σ = 3962426732124. Its totient is φ = 970390220064.

The previous prime is 2102512143509. The next prime is 2102512143527. The reversal of 2102512143524 is 4253412152012.

It can be written as a sum of positive squares in 2 ways, for example, as 912754765924 + 1189757377600 = 955382^2 + 1090760^2 .

It is not an unprimeable number, because it can be changed into a prime (2102512143527) 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, 20216462867 + ... + 20216462970.

It is an arithmetic number, because the mean of its divisors is an integer number (330202227677).

Almost surely, 2^{2102512143524} is an apocalyptic number.

It is an amenable number.

2102512143524 is a deficient number, since it is larger than the sum of its proper divisors (1859914588600).

2102512143524 is a wasteful number, since it uses less digits than its factorization.

2102512143524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40432925854 (or 40432925852 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 2102512143524 its reverse (4253412152012), we get a palindrome (6355924295536).

The spelling of 2102512143524 in words is "two trillion, one hundred two billion, five hundred twelve million, one hundred forty-three thousand, five hundred twenty-four".