1101191921011 has 16 divisors (see below), whose sum is σ = 1355406567424. Its totient is φ = 871212664224.

The previous prime is 1101191920943. The next prime is 1101191921029. The reversal of 1101191921011 is 1101291911011.

It is not a de Polignac number, because 1101191921011 - 2³⁷ = 963752967539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101191921311) 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, 934066 + ... + 1753528.

It is an arithmetic number, because the mean of its divisors is an integer number (84712910464).

Almost surely, 2^{1101191921011} is an apocalyptic number.

1101191921011 is a deficient number, since it is larger than the sum of its proper divisors (254214646413).

1101191921011 is a wasteful number, since it uses less digits than its factorization.

1101191921011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834250.

The product of its (nonzero) digits is 162, while the sum is 28.

It can be divided in two parts, 1101191 and 921011, that multiplied together give a palindrome (1014209024101).

The spelling of 1101191921011 in words is "one trillion, one hundred one billion, one hundred ninety-one million, nine hundred twenty-one thousand, eleven".