11002331493 has 30 divisors (see below), whose sum is σ = 16558712786. Its totient is φ = 7280342208.

The previous prime is 11002331479. The next prime is 11002331503. The reversal of 11002331493 is 39413320011.

It can be written as a sum of positive squares in 3 ways, for example, as 3130738209 + 7871593284 = 55953^2 + 88722^2 .

It is not a de Polignac number, because 11002331493 - 2⁸ = 11002331237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002331423) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1516671 + ... + 1523907.

Almost surely, 2^11002331493 is an apocalyptic number.

It is an amenable number.

11002331493 is a deficient number, since it is larger than the sum of its proper divisors (5556381293).

11002331493 is an frugal number, since it uses more digits than its factorization.

11002331493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 11002331493 in words is "eleven billion, two million, three hundred thirty-one thousand, four hundred ninety-three".