100131203452 has 72 divisors (see below), whose sum is σ = 207282989760. Its totient is φ = 42192783360.

The previous prime is 100131203443. The next prime is 100131203461. The reversal of 100131203452 is 254302131001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100131203443) and next prime (100131203461).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3718228 + ... + 3745060.

Almost surely, 2^100131203452 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 100131203452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103641494880).

100131203452 is an abundant number, since it is smaller than the sum of its proper divisors (107151786308).

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

100131203452 is a wasteful number, since it uses less digits than its factorization.

100131203452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27171 (or 27162 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 100131203452 its reverse (254302131001), we get a palindrome (354433334453).

The spelling of 100131203452 in words is "one hundred billion, one hundred thirty-one million, two hundred three thousand, four hundred fifty-two".