23121134330 has 64 divisors (see below), whose sum is σ = 49719467520. Its totient is φ = 7569137664.

The previous prime is 23121134321. The next prime is 23121134341. The reversal of 23121134330 is 3343112132.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 23121134296 and 23121134305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916526 + ... + 941414.

It is an arithmetic number, because the mean of its divisors is an integer number (776866680).

Almost surely, 2^23121134330 is an apocalyptic number.

23121134330 is an abundant number, since it is smaller than the sum of its proper divisors (26598333190).

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

23121134330 is a wasteful number, since it uses less digits than its factorization.

23121134330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25503.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23121134330 its reverse (3343112132), we get a palindrome (26464246462).

The spelling of 23121134330 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirty-four thousand, three hundred thirty".