123537342501 has 6 divisors (see below), whose sum is σ = 178442828070. Its totient is φ = 82358228328.

The previous prime is 123537342493. The next prime is 123537342503. The reversal of 123537342501 is 105243735321.

123537342501 is a `hidden beast` number, since 1 + 2 + 35 + 373 + 4 + 250 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118054088100 + 5483254401 = 343590^2 + 74049^2 .

It is not a de Polignac number, because 123537342501 - 2³ = 123537342493 is a prime.

It is a super-2 number, since 2×123537342501² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123537342503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6863185686 + ... + 6863185703.

It is an arithmetic number, because the mean of its divisors is an integer number (29740471345).

Almost surely, 2^123537342501 is an apocalyptic number.

It is an amenable number.

123537342501 is a deficient number, since it is larger than the sum of its proper divisors (54905485569).

123537342501 is a wasteful number, since it uses less digits than its factorization.

123537342501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13726371395 (or 13726371392 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 123537342501 in words is "one hundred twenty-three billion, five hundred thirty-seven million, three hundred forty-two thousand, five hundred one".