23012121030 has 16 divisors (see below), whose sum is σ = 55229090544. Its totient is φ = 6136565600.

The previous prime is 23012120993. The next prime is 23012121037. The reversal of 23012121030 is 3012121032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012121037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383535321 + ... + 383535380.

It is an arithmetic number, because the mean of its divisors is an integer number (3451818159).

Almost surely, 2^23012121030 is an apocalyptic number.

23012121030 is an abundant number, since it is smaller than the sum of its proper divisors (32216969514).

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

23012121030 is a wasteful number, since it uses less digits than its factorization.

23012121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767070711.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23012121030 its reverse (3012121032), we get a palindrome (26024242062).

The spelling of 23012121030 in words is "twenty-three billion, twelve million, one hundred twenty-one thousand, thirty".