23311212123 has 8 divisors (see below), whose sum is σ = 31668061968. Its totient is φ = 15247585184.

The previous prime is 23311212019. The next prime is 23311212131. The reversal of 23311212123 is 32121211332.

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

It is a cyclic number.

It is not a de Polignac number, because 23311212123 - 2¹⁸ = 23310949979 is a prime.

It is a super-2 number, since 2×23311212123² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23311212123.

It is not an unprimeable number, because it can be changed into a prime (23311212173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73305540 + ... + 73305857.

It is an arithmetic number, because the mean of its divisors is an integer number (3958507746).

Almost surely, 2^23311212123 is an apocalyptic number.

23311212123 is a deficient number, since it is larger than the sum of its proper divisors (8356849845).

23311212123 is a wasteful number, since it uses less digits than its factorization.

23311212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146611453.

The product of its digits is 432, while the sum is 21.

Adding to 23311212123 its reverse (32121211332), we get a palindrome (55432423455).

The spelling of 23311212123 in words is "twenty-three billion, three hundred eleven million, two hundred twelve thousand, one hundred twenty-three".