131101000436 has 48 divisors (see below), whose sum is σ = 268123140096. Its totient is φ = 54920385504.

The previous prime is 131101000427. The next prime is 131101000439. The reversal of 131101000436 is 634000101131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101000439) 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, 972401 + ... + 1098983.

It is an arithmetic number, because the mean of its divisors is an integer number (5585898752).

Almost surely, 2^131101000436 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 131101000436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134061570048).

131101000436 is an abundant number, since it is smaller than the sum of its proper divisors (137022139660).

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

131101000436 is a wasteful number, since it uses less digits than its factorization.

131101000436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127428 (or 127426 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131101000436 its reverse (634000101131), we get a palindrome (765101101567).

The spelling of 131101000436 in words is "one hundred thirty-one billion, one hundred one million, four hundred thirty-six", and thus it is an aban number.