1553240124120 has 128 divisors (see below), whose sum is σ = 4831537636800. Its totient is φ = 398990721024.

The previous prime is 1553240124119. The next prime is 1553240124167. The reversal of 1553240124120 is 214210423551.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 991444 + ... + 2022236.

Almost surely, 2^{1553240124120} is an apocalyptic number.

1553240124120 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 1553240124120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2415768818400).

1553240124120 is an abundant number, since it is smaller than the sum of its proper divisors (3278297512680).

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

1553240124120 is a wasteful number, since it uses less digits than its factorization.

1553240124120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031269 (or 1031265 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1553240124120 its reverse (214210423551), we get a palindrome (1767450547671).

The spelling of 1553240124120 in words is "one trillion, five hundred fifty-three billion, two hundred forty million, one hundred twenty-four thousand, one hundred twenty".