123537441513 has 8 divisors (see below), whose sum is σ = 164720954368. Its totient is φ = 82356111504.

The previous prime is 123537441479. The next prime is 123537441523. The reversal of 123537441513 is 315144735321.

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

It is not a de Polignac number, because 123537441513 - 2¹⁶ = 123537375977 is a prime.

It is a super-2 number, since 2×123537441513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123537441523) 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, 408745 + ... + 643542.

It is an arithmetic number, because the mean of its divisors is an integer number (20590119296).

Almost surely, 2^123537441513 is an apocalyptic number.

It is an amenable number.

123537441513 is a deficient number, since it is larger than the sum of its proper divisors (41183512855).

123537441513 is a wasteful number, since it uses less digits than its factorization.

123537441513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091423.

The product of its digits is 151200, while the sum is 39.

The spelling of 123537441513 in words is "one hundred twenty-three billion, five hundred thirty-seven million, four hundred forty-one thousand, five hundred thirteen".