1233401143040 has 144 divisors (see below), whose sum is σ = 3283773859296. Its totient is φ = 440046796800.

The previous prime is 1233401143003. The next prime is 1233401143049. The reversal of 1233401143040 is 403411043321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233401143049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80171 + ... + 1572650.

It is an arithmetic number, because the mean of its divisors is an integer number (22803985134).

Almost surely, 2^{1233401143040} is an apocalyptic number.

1233401143040 is a gapful number since it is divisible by the number (10) 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 1233401143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641886929648).

1233401143040 is an abundant number, since it is smaller than the sum of its proper divisors (2050372716256).

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

1233401143040 is a wasteful number, since it uses less digits than its factorization.

1233401143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652906 (or 1652892 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1233401143040 its reverse (403411043321), we get a palindrome (1636812186361).

The spelling of 1233401143040 in words is "one trillion, two hundred thirty-three billion, four hundred one million, one hundred forty-three thousand, forty".