23203031321231 has 16 divisors (see below), whose sum is σ = 24257944212480. Its totient is φ = 22176601159200.

The previous prime is 23203031321221. The next prime is 23203031321243. The reversal of 23203031321231 is 13212313030232.

It is a cyclic number.

It is not a de Polignac number, because 23203031321231 - 2⁶ = 23203031321167 is a prime.

It is a super-2 number, since 2×23203031321231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23203031321231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203031321201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27288176 + ... + 28125621.

It is an arithmetic number, because the mean of its divisors is an integer number (1516121513280).

Almost surely, 2^{23203031321231} is an apocalyptic number.

23203031321231 is a deficient number, since it is larger than the sum of its proper divisors (1054912891249).

23203031321231 is a wasteful number, since it uses less digits than its factorization.

23203031321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55414054.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 23203031321231 its reverse (13212313030232), we get a palindrome (36415344351463).

The spelling of 23203031321231 in words is "twenty-three trillion, two hundred three billion, thirty-one million, three hundred twenty-one thousand, two hundred thirty-one".