11115925971 has 8 divisors (see below), whose sum is σ = 14822529024. Its totient is φ = 7409970120.

The previous prime is 11115925969. The next prime is 11115925987. The reversal of 11115925971 is 17952951111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11115925971 - 2¹ = 11115925969 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11115925901) 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, 120195 + ... + 191516.

It is an arithmetic number, because the mean of its divisors is an integer number (1852816128).

Almost surely, 2^11115925971 is an apocalyptic number.

11115925971 is a deficient number, since it is larger than the sum of its proper divisors (3706603053).

11115925971 is a wasteful number, since it uses less digits than its factorization.

11115925971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323601.

The product of its digits is 28350, while the sum is 42.

The spelling of 11115925971 in words is "eleven billion, one hundred fifteen million, nine hundred twenty-five thousand, nine hundred seventy-one".