1011042491292 has 96 divisors (see below), whose sum is σ = 2645029094400. Its totient is φ = 333954544896.

The previous prime is 1011042491267. The next prime is 1011042491297. The reversal of 1011042491292 is 2921942401101.

1011042491292 is a `hidden beast` number, since 10 + 110 + 4 + 249 + 1 + 292 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011042491297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80625559 + ... + 80638097.

It is an arithmetic number, because the mean of its divisors is an integer number (27552386400).

Almost surely, 2^{1011042491292} is an apocalyptic number.

1011042491292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011042491292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322514547200).

1011042491292 is an abundant number, since it is smaller than the sum of its proper divisors (1633986603108).

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

1011042491292 is a wasteful number, since it uses less digits than its factorization.

1011042491292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272 (or 19264 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

Adding to 1011042491292 its reverse (2921942401101), we get a palindrome (3932984892393).

The spelling of 1011042491292 in words is "one trillion, eleven billion, forty-two million, four hundred ninety-one thousand, two hundred ninety-two".