11497281930 has 24 divisors (see below), whose sum is σ = 29892933252. Its totient is φ = 3065941824.

The previous prime is 11497281923. The next prime is 11497281947. The reversal of 11497281930 is 3918279411.

It can be written as a sum of positive squares in 2 ways, for example, as 10861183089 + 636098841 = 104217^2 + 25221^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63873699 + ... + 63873878.

Almost surely, 2^11497281930 is an apocalyptic number.

11497281930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11497281930 is an abundant number, since it is smaller than the sum of its proper divisors (18395651322).

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

11497281930 is a wasteful number, since it uses less digits than its factorization.

11497281930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127747590 (or 127747587 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 11497281930 in words is "eleven billion, four hundred ninety-seven million, two hundred eighty-one thousand, nine hundred thirty".