113145453521 has 8 divisors (see below), whose sum is σ = 119905173504. Its totient is φ = 106397300800.

The previous prime is 113145453517. The next prime is 113145453523. The reversal of 113145453521 is 125354541311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113145453521 - 2² = 113145453517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113145453523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871665 + ... + 2910798.

It is an arithmetic number, because the mean of its divisors is an integer number (14988146688).

Almost surely, 2^113145453521 is an apocalyptic number.

It is an amenable number.

113145453521 is a deficient number, since it is larger than the sum of its proper divisors (6759719983).

113145453521 is a wasteful number, since it uses less digits than its factorization.

113145453521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783631.

The product of its digits is 36000, while the sum is 35.

Adding to 113145453521 its reverse (125354541311), we get a palindrome (238499994832).

The spelling of 113145453521 in words is "one hundred thirteen billion, one hundred forty-five million, four hundred fifty-three thousand, five hundred twenty-one".