2100420502 has 4 divisors (see below), whose sum is σ = 3150630756. Its totient is φ = 1050210250.

The previous prime is 2100420481. The next prime is 2100420571. The reversal of 2100420502 is 2050240012.

It is a semiprime because it is the product of two primes.

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, 525105124 + ... + 525105127.

It is an arithmetic number, because the mean of its divisors is an integer number (787657689).

Almost surely, 2^2100420502 is an apocalyptic number.

2100420502 is a deficient number, since it is larger than the sum of its proper divisors (1050210254).

2100420502 is a wasteful number, since it uses less digits than its factorization.

2100420502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050210253.

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

The square root of 2100420502 is about 45830.3447728686. The cubic root of 2100420502 is about 1280.6646332672.

Adding to 2100420502 its reverse (2050240012), we get a palindrome (4150660514).

The spelling of 2100420502 in words is "two billion, one hundred million, four hundred twenty thousand, five hundred two".