231433023016 has 64 divisors (see below), whose sum is σ = 483005108880. Its totient is φ = 103266109440.

The previous prime is 231433023007. The next prime is 231433023091. The reversal of 231433023016 is 610320334132.

It can be written as a sum of positive squares in 8 ways, for example, as 111252934116 + 120180088900 = 333546^2 + 346670^2 .

It is a super-2 number, since 2×231433023016² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412596 + ... + 795676.

Almost surely, 2^231433023016 is an apocalyptic number.

231433023016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231433023016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241502554440).

231433023016 is an abundant number, since it is smaller than the sum of its proper divisors (251572085864).

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

231433023016 is a wasteful number, since it uses less digits than its factorization.

231433023016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383294 (or 383290 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 231433023016 its reverse (610320334132), we get a palindrome (841753357148).

The spelling of 231433023016 in words is "two hundred thirty-one billion, four hundred thirty-three million, twenty-three thousand, sixteen".