2102135502 has 16 divisors (see below), whose sum is σ = 4283597520. Its totient is φ = 687490752.

The previous prime is 2102135491. The next prime is 2102135507. The reversal of 2102135502 is 2055312012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102135507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3304927 + ... + 3305562.

It is an arithmetic number, because the mean of its divisors is an integer number (267724845).

Almost surely, 2^2102135502 is an apocalyptic number.

2102135502 is an abundant number, since it is smaller than the sum of its proper divisors (2181462018).

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

2102135502 is a wasteful number, since it uses less digits than its factorization.

2102135502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610547.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2102135502 is about 45849.0512660840. The cubic root of 2102135502 is about 1281.0130940226.

Adding to 2102135502 its reverse (2055312012), we get a palindrome (4157447514).

The spelling of 2102135502 in words is "two billion, one hundred two million, one hundred thirty-five thousand, five hundred two".