1011111009975 has 120 divisors (see below), whose sum is σ = 2044276515072. Its totient is φ = 489975739200.

The previous prime is 1011111009973. The next prime is 1011111010001. The reversal of 1011111009975 is 5799001111101.

It is not a de Polignac number, because 1011111009975 - 2¹ = 1011111009973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011111009971) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 45942324 + ... + 45964326.

Almost surely, 2^{1011111009975} is an apocalyptic number.

1011111009975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1011111009975 is an abundant number, since it is smaller than the sum of its proper divisors (1033165505097).

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

1011111009975 is a wasteful number, since it uses less digits than its factorization.

1011111009975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24099 (or 24085 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 36.

The spelling of 1011111009975 in words is "one trillion, eleven billion, one hundred eleven million, nine thousand, nine hundred seventy-five".