23011212330 has 24 divisors (see below), whose sum is σ = 59829152292. Its totient is φ = 6136323264.

The previous prime is 23011212307. The next prime is 23011212347. The reversal of 23011212330 is 3321211032.

It can be written as a sum of positive squares in 2 ways, for example, as 21255015681 + 1756196649 = 145791^2 + 41907^2 .

It is a super-3 number, since 3×23011212330³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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, 127839979 + ... + 127840158.

Almost surely, 2^23011212330 is an apocalyptic number.

23011212330 is an abundant number, since it is smaller than the sum of its proper divisors (36817939962).

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

23011212330 is a wasteful number, since it uses less digits than its factorization.

23011212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255680150 (or 255680147 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23011212330 its reverse (3321211032), we get a palindrome (26332423362).

The spelling of 23011212330 in words is "twenty-three billion, eleven million, two hundred twelve thousand, three hundred thirty".