11535131501 has 4 divisors (see below), whose sum is σ = 11558064672. Its totient is φ = 11512198332.

The previous prime is 11535131497. The next prime is 11535131561. The reversal of 11535131501 is 10513153511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11535131501 - 2² = 11535131497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535131561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11465831 + ... + 11466836.

It is an arithmetic number, because the mean of its divisors is an integer number (2889516168).

Almost surely, 2^11535131501 is an apocalyptic number.

It is an amenable number.

11535131501 is a deficient number, since it is larger than the sum of its proper divisors (22933171).

11535131501 is an equidigital number, since it uses as much as digits as its factorization.

11535131501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22933170.

The product of its (nonzero) digits is 1125, while the sum is 26.

The spelling of 11535131501 in words is "eleven billion, five hundred thirty-five million, one hundred thirty-one thousand, five hundred one".