11901308427 has 8 divisors (see below), whose sum is σ = 17631568080. Its totient is φ = 7934205600.

The previous prime is 11901308413. The next prime is 11901308429. The reversal of 11901308427 is 72480310911.

It is a happy number.

11901308427 is a `hidden beast` number, since 11 + 90 + 130 + 8 + 427 = 666.

It is not a de Polignac number, because 11901308427 - 2¹⁰ = 11901307403 is a prime.

It is a super-2 number, since 2×11901308427² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11901308391 and 11901308400.

It is not an unprimeable number, because it can be changed into a prime (11901308429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220394574 + ... + 220394627.

It is an arithmetic number, because the mean of its divisors is an integer number (2203946010).

Almost surely, 2^11901308427 is an apocalyptic number.

11901308427 is a deficient number, since it is larger than the sum of its proper divisors (5730259653).

11901308427 is an equidigital number, since it uses as much as digits as its factorization.

11901308427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440789210 (or 440789204 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11901308427 in words is "eleven billion, nine hundred one million, three hundred eight thousand, four hundred twenty-seven".