21010031130132 has 120 divisors (see below), whose sum is σ = 59940755249760. Its totient is φ = 6364204655040.

The previous prime is 21010031130131. The next prime is 21010031130199. The reversal of 21010031130132 is 23103113001012.

21010031130132 is a `hidden beast` number, since 2 + 10 + 10 + 0 + 311 + 301 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010031130131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8048658 + ... + 10334454.

It is an arithmetic number, because the mean of its divisors is an integer number (499506293748).

Almost surely, 2^{21010031130132} is an apocalyptic number.

21010031130132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010031130132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29970377624880).

21010031130132 is an abundant number, since it is smaller than the sum of its proper divisors (38930724119628).

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

21010031130132 is a wasteful number, since it uses less digits than its factorization.

21010031130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288403 (or 2288392 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21010031130132 its reverse (23103113001012), we get a palindrome (44113144131144).

The spelling of 21010031130132 in words is "twenty-one trillion, ten billion, thirty-one million, one hundred thirty thousand, one hundred thirty-two".