2100520402 has 48 divisors (see below), whose sum is σ = 3433731840. Its totient is φ = 962460576.

The previous prime is 2100520369. The next prime is 2100520423. The reversal of 2100520402 is 2040250012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6841933 + ... + 6842239.

It is an arithmetic number, because the mean of its divisors is an integer number (71536080).

Almost surely, 2^2100520402 is an apocalyptic number.

2100520402 is a deficient number, since it is larger than the sum of its proper divisors (1333211438).

2100520402 is a wasteful number, since it uses less digits than its factorization.

2100520402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2100520402 is about 45831.4346491576. The cubic root of 2100520402 is about 1280.6849365618.

Adding to 2100520402 its reverse (2040250012), we get a palindrome (4140770414).

The spelling of 2100520402 in words is "two billion, one hundred million, five hundred twenty thousand, four hundred two".