20135253102 has 32 divisors (see below), whose sum is σ = 40430662272. Its totient is φ = 6685101984.

The previous prime is 20135253079. The next prime is 20135253109.

It is a happy number.

20135253102 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135253109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104293 + ... + 2113839.

It is an arithmetic number, because the mean of its divisors is an integer number (1263458196).

Almost surely, 2^20135253102 is an apocalyptic number.

20135253102 is an abundant number, since it is smaller than the sum of its proper divisors (20295409170).

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

20135253102 is a wasteful number, since it uses less digits than its factorization.

20135253102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 20135253102 in words is "twenty billion, one hundred thirty-five million, two hundred fifty-three thousand, one hundred two".