1013243551425 has 108 divisors (see below), whose sum is σ = 2111588041680. Its totient is φ = 463096751040.

The previous prime is 1013243551423. The next prime is 1013243551429. The reversal of 1013243551425 is 5241553423101.

1013243551425 is a `hidden beast` number, since 1 + 0 + 132 + 4 + 3 + 5 + 514 + 2 + 5 = 666.

It is not a de Polignac number, because 1013243551425 - 2¹ = 1013243551423 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013243551425.

It is not an unprimeable number, because it can be changed into a prime (1013243551423) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 80288766 + ... + 80301384.

Almost surely, 2^{1013243551425} is an apocalyptic number.

1013243551425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1013243551425 is an abundant number, since it is smaller than the sum of its proper divisors (1098344490255).

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

1013243551425 is a wasteful number, since it uses less digits than its factorization.

1013243551425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932 (or 19917 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1013243551425 its reverse (5241553423101), we get a palindrome (6254796974526).

The spelling of 1013243551425 in words is "one trillion, thirteen billion, two hundred forty-three million, five hundred fifty-one thousand, four hundred twenty-five".