23013121330 has 32 divisors (see below), whose sum is σ = 41700981168. Its totient is φ = 9143808000.

The previous prime is 23013121291. The next prime is 23013121331. The reversal of 23013121330 is 3312131032.

It can be written as a sum of positive squares in 8 ways, for example, as 19939416849 + 3073704481 = 141207^2 + 55441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23013121298 and 23013121307.

It is not an unprimeable number, because it can be changed into a prime (23013121331) 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, 954504 + ... + 978316.

Almost surely, 2^23013121330 is an apocalyptic number.

23013121330 is a deficient number, since it is larger than the sum of its proper divisors (18687859838).

23013121330 is a wasteful number, since it uses less digits than its factorization.

23013121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24462.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 23013121330 its reverse (3312131032), we get a palindrome (26325252362).

The spelling of 23013121330 in words is "twenty-three billion, thirteen million, one hundred twenty-one thousand, three hundred thirty".