31233230111023 has 16 divisors (see below), whose sum is σ = 31404854912256. Its totient is φ = 31062100829760.

The previous prime is 31233230110883. The next prime is 31233230111081. The reversal of 31233230111023 is 32011103233213.

It is a cyclic number.

It is not a de Polignac number, because 31233230111023 - 2¹³ = 31233230102831 is a prime.

It is a super-2 number, since 2×31233230111023² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233230111093) 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, 549591136 + ... + 549647962.

It is an arithmetic number, because the mean of its divisors is an integer number (1962803432016).

Almost surely, 2^{31233230111023} is an apocalyptic number.

31233230111023 is a deficient number, since it is larger than the sum of its proper divisors (171624801233).

31233230111023 is a wasteful number, since it uses less digits than its factorization.

31233230111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61134.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31233230111023 its reverse (32011103233213), we get a palindrome (63244333344236).

The spelling of 31233230111023 in words is "thirty-one trillion, two hundred thirty-three billion, two hundred thirty million, one hundred eleven thousand, twenty-three".