1255135410120 has 64 divisors (see below), whose sum is σ = 3788506941120. Its totient is φ = 332649379584.

The previous prime is 1255135410031. The next prime is 1255135410127. The reversal of 1255135410120 is 210145315521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1255135410127) 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, 32064679 + ... + 32103798.

It is an arithmetic number, because the mean of its divisors is an integer number (59195420955).

Almost surely, 2^{1255135410120} is an apocalyptic number.

1255135410120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255135410120 is an abundant number, since it is smaller than the sum of its proper divisors (2533371531000).

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

1255135410120 is a wasteful number, since it uses less digits than its factorization.

1255135410120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64168654 (or 64168650 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1255135410120 in words is "one trillion, two hundred fifty-five billion, one hundred thirty-five million, four hundred ten thousand, one hundred twenty".