1153121353542 has 96 divisors (see below), whose sum is σ = 2574787479264. Its totient is φ = 372743078400.

The previous prime is 1153121353537. The next prime is 1153121353607. The reversal of 1153121353542 is 2453531213511.

It is a happy number.

1153121353542 is a `hidden beast` number, since 1 + 1 + 53 + 1 + 2 + 13 + 53 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1153121353497 and 1153121353506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185654817 + ... + 185661027.

It is an arithmetic number, because the mean of its divisors is an integer number (26820702909).

Almost surely, 2^{1153121353542} is an apocalyptic number.

1153121353542 is an abundant number, since it is smaller than the sum of its proper divisors (1421666125722).

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

1153121353542 is a wasteful number, since it uses less digits than its factorization.

1153121353542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734 (or 7731 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 1153121353542 in words is "one trillion, one hundred fifty-three billion, one hundred twenty-one million, three hundred fifty-three thousand, five hundred forty-two".