11312421530 has 8 divisors (see below), whose sum is σ = 20362358772. Its totient is φ = 4524968608.

The previous prime is 11312421521. The next prime is 11312421557. The reversal of 11312421530 is 3512421311.

It can be written as a sum of positive squares in 2 ways, for example, as 10142302681 + 1170118849 = 100709^2 + 34207^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11312421496 and 11312421505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565621067 + ... + 565621086.

Almost surely, 2^11312421530 is an apocalyptic number.

11312421530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312421530 is a deficient number, since it is larger than the sum of its proper divisors (9049937242).

11312421530 is a wasteful number, since it uses less digits than its factorization.

11312421530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131242160.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11312421530 its reverse (3512421311), we get a palindrome (14824842841).

The spelling of 11312421530 in words is "eleven billion, three hundred twelve million, four hundred twenty-one thousand, five hundred thirty".