2100000001932 has 144 divisors (see below), whose sum is σ = 6130894416192. Its totient is φ = 593651220480.

The previous prime is 2100000001903. The next prime is 2100000001949. The reversal of 2100000001932 is 2391000000012.

It is a happy number.

It is a super-2 number, since 2×2100000001932² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109817332 + ... + 109836452.

It is an arithmetic number, because the mean of its divisors is an integer number (42575655668).

Almost surely, 2^{2100000001932} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100000001932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3065447208096).

2100000001932 is an abundant number, since it is smaller than the sum of its proper divisors (4030894414260).

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

2100000001932 is a wasteful number, since it uses less digits than its factorization.

2100000001932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23728 (or 23723 counting only the distinct ones).

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

Adding to 2100000001932 its reverse (2391000000012), we get a palindrome (4491000001944).

The spelling of 2100000001932 in words is "two trillion, one hundred billion, one thousand, nine hundred thirty-two".