2131242432 has 112 divisors (see below), whose sum is σ = 6175443072. Its totient is φ = 643322880.

The previous prime is 2131242431. The next prime is 2131242437. The reversal of 2131242432 is 2342421312.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131242431) 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, 583203 + ... + 586845.

Almost surely, 2^2131242432 is an apocalyptic number.

2131242432 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 2131242432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087721536).

2131242432 is an abundant number, since it is smaller than the sum of its proper divisors (4044200640).

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

2131242432 is a wasteful number, since it uses less digits than its factorization.

2131242432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946 (or 3936 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 2131242432 is about 46165.3813154403. The cubic root of 2131242432 is about 1286.8984705302.

Adding to 2131242432 its reverse (2342421312), we get a palindrome (4473663744).

The spelling of 2131242432 in words is "two billion, one hundred thirty-one million, two hundred forty-two thousand, four hundred thirty-two".