1255120332000 has 96 divisors (see below), whose sum is σ = 4111774246944. Its totient is φ = 334698752000.

The previous prime is 1255120331989. The next prime is 1255120332007. The reversal of 1255120332000 is 2330215521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255120332007) 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, 52284681 + ... + 52308680.

It is an arithmetic number, because the mean of its divisors is an integer number (42830981739).

Almost surely, 2^{1255120332000} is an apocalyptic number.

1255120332000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255120332000 is an abundant number, since it is smaller than the sum of its proper divisors (2856653914944).

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

1255120332000 is a wasteful number, since it uses less digits than its factorization.

1255120332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104593389 (or 104593371 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 1255120332000 its reverse (2330215521), we get a palindrome (1257450547521).

The spelling of 1255120332000 in words is "one trillion, two hundred fifty-five billion, one hundred twenty million, three hundred thirty-two thousand".