1231433033020 has 24 divisors (see below), whose sum is σ = 2600296721568. Its totient is φ = 489851812800.

The previous prime is 1231433032987. The next prime is 1231433033023. The reversal of 1231433033020 is 203303341321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231433033023) 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, 170083816 + ... + 170091055.

It is an arithmetic number, because the mean of its divisors is an integer number (108345696732).

Almost surely, 2^{1231433033020} is an apocalyptic number.

1231433033020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231433033020 is an abundant number, since it is smaller than the sum of its proper divisors (1368863688548).

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

1231433033020 is a wasteful number, since it uses less digits than its factorization.

1231433033020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340175061 (or 340175059 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1231433033020 its reverse (203303341321), we get a palindrome (1434736374341).

The spelling of 1231433033020 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-three million, thirty-three thousand, twenty".