11215401051091 has 8 divisors (see below), whose sum is σ = 11641736771280. Its totient is φ = 10791705181152.

The previous prime is 11215401051089. The next prime is 11215401051133. The reversal of 11215401051091 is 19015010451211.

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

It is a cyclic number.

It is not a de Polignac number, because 11215401051091 - 2¹ = 11215401051089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11215401051031) 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, 659953905 + ... + 659970898.

It is an arithmetic number, because the mean of its divisors is an integer number (1455217096410).

Almost surely, 2^{11215401051091} is an apocalyptic number.

11215401051091 is a deficient number, since it is larger than the sum of its proper divisors (426335720189).

11215401051091 is a wasteful number, since it uses less digits than its factorization.

11215401051091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319925125.

The product of its (nonzero) digits is 1800, while the sum is 31.

The spelling of 11215401051091 in words is "eleven trillion, two hundred fifteen billion, four hundred one million, fifty-one thousand, ninety-one".