1040302100091 has 16 divisors (see below), whose sum is σ = 1431864132608. Its totient is φ = 671138978400.

The previous prime is 1040302100087. The next prime is 1040302100107. The reversal of 1040302100091 is 1900012030401.

It is not a de Polignac number, because 1040302100091 - 2² = 1040302100087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040302100011) 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, 2678556 + ... + 3042246.

It is an arithmetic number, because the mean of its divisors is an integer number (89491508288).

Almost surely, 2^{1040302100091} is an apocalyptic number.

1040302100091 is a deficient number, since it is larger than the sum of its proper divisors (391562032517).

1040302100091 is a wasteful number, since it uses less digits than its factorization.

1040302100091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394482.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1040302100091 its reverse (1900012030401), we get a palindrome (2940314130492).

The spelling of 1040302100091 in words is "one trillion, forty billion, three hundred two million, one hundred thousand, ninety-one".