21353253101130 has 64 divisors (see below), whose sum is σ = 51665952780288. Its totient is φ = 5647765616640.

The previous prime is 21353253101107. The next prime is 21353253101179. The reversal of 21353253101130 is 3110135235312.

It is a super-2 number, since 2×21353253101130² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12699834 + ... + 14282586.

It is an arithmetic number, because the mean of its divisors is an integer number (807280512192).

Almost surely, 2^{21353253101130} is an apocalyptic number.

21353253101130 is an abundant number, since it is smaller than the sum of its proper divisors (30312699679158).

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

21353253101130 is a wasteful number, since it uses less digits than its factorization.

21353253101130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586431.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 21353253101130 its reverse (3110135235312), we get a palindrome (24463388336442).

The spelling of 21353253101130 in words is "twenty-one trillion, three hundred fifty-three billion, two hundred fifty-three million, one hundred one thousand, one hundred thirty".