1242113410125 has 256 divisors, whose sum is σ = 2802462474240. Its totient is φ = 530494272000.

The previous prime is 1242113410123. The next prime is 1242113410259. The reversal of 1242113410125 is 5210143112421.

1242113410125 is a `hidden beast` number, since 1 + 2 + 421 + 134 + 101 + 2 + 5 = 666.

It is not a de Polignac number, because 1242113410125 - 2¹ = 1242113410123 is a prime.

It is a super-2 number, since 2×1242113410125² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242113410123) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 23338545 + ... + 23391705.

It is an arithmetic number, because the mean of its divisors is an integer number (10947119040).

Almost surely, 2^{1242113410125} is an apocalyptic number.

1242113410125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1242113410125 is an abundant number, since it is smaller than the sum of its proper divisors (1560349064115).

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

1242113410125 is a wasteful number, since it uses less digits than its factorization.

1242113410125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53258 (or 53242 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 1242113410125 its reverse (5210143112421), we get a palindrome (6452256522546).

The spelling of 1242113410125 in words is "one trillion, two hundred forty-two billion, one hundred thirteen million, four hundred ten thousand, one hundred twenty-five".