2081121432 has 128 divisors (see below), whose sum is σ = 5834808000. Its totient is φ = 617809920.

The previous prime is 2081121407. The next prime is 2081121457. The reversal of 2081121432 is 2341211802.

It is an interprime number because it is at equal distance from previous prime (2081121407) and next prime (2081121457).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 1528432 + ... + 1529792.

Almost surely, 2^2081121432 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 2081121432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2917404000).

2081121432 is an abundant number, since it is smaller than the sum of its proper divisors (3753686568).

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

2081121432 is a wasteful number, since it uses less digits than its factorization.

2081121432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2081121432 is about 45619.3098588745. The cubic root of 2081121432 is about 1276.7302270353.

The spelling of 2081121432 in words is "two billion, eighty-one million, one hundred twenty-one thousand, four hundred thirty-two".