231433201000 has 32 divisors (see below), whose sum is σ = 541553692680. Its totient is φ = 92573280000.

The previous prime is 231433200989. The next prime is 231433201009. The reversal of 231433201000 is 102334132.

It can be written as a sum of positive squares in 4 ways, for example, as 69399579844 + 162033621156 = 263438^2 + 402534^2 .

It is a super-2 number, since 2×231433201000² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231433201009) 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, 115715601 + ... + 115717600.

Almost surely, 2^231433201000 is an apocalyptic number.

231433201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231433201000 is an abundant number, since it is smaller than the sum of its proper divisors (310120491680).

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

231433201000 is a wasteful number, since it uses less digits than its factorization.

231433201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231433222 (or 231433208 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231433201000 its reverse (102334132), we get a palindrome (231535535132).

The spelling of 231433201000 in words is "two hundred thirty-one billion, four hundred thirty-three million, two hundred one thousand".