1233400231 has 8 divisors (see below), whose sum is σ = 1470887424. Its totient is φ = 1011234840.

The previous prime is 1233400199. The next prime is 1233400243. The reversal of 1233400231 is 1320043321.

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

It is not a de Polignac number, because 1233400231 - 2⁵ = 1233400199 is a prime.

It is a super-2 number, since 2×1233400231² = 3042552259661706722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233400199 and 1233400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233400271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3830275 + ... + 3830596.

It is an arithmetic number, because the mean of its divisors is an integer number (183860928).

Almost surely, 2^1233400231 is an apocalyptic number.

1233400231 is a deficient number, since it is larger than the sum of its proper divisors (237487193).

1233400231 is an equidigital number, since it uses as much as digits as its factorization.

1233400231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7660901.

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

The square root of 1233400231 is about 35119.7982767555. The cubic root of 1233400231 is about 1072.4276642458.

Adding to 1233400231 its reverse (1320043321), we get a palindrome (2553443552).

The spelling of 1233400231 in words is "one billion, two hundred thirty-three million, four hundred thousand, two hundred thirty-one".