123537134201 has 8 divisors (see below), whose sum is σ = 133102276104. Its totient is φ = 113980890240.

The previous prime is 123537134197. The next prime is 123537134207. The reversal of 123537134201 is 102431735321.

It can be written as a sum of positive squares in 4 ways, for example, as 1755625 + 123535378576 = 1325^2 + 351476^2 .

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 123537134201 - 2² = 123537134197 is a prime.

It is a super-2 number, since 2×123537134201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123537134207) 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, 2195630 + ... + 2251191.

It is an arithmetic number, because the mean of its divisors is an integer number (16637784513).

Almost surely, 2^123537134201 is an apocalyptic number.

It is an amenable number.

123537134201 is a deficient number, since it is larger than the sum of its proper divisors (9565141903).

123537134201 is a wasteful number, since it uses less digits than its factorization.

123537134201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448971.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 123537134201 its reverse (102431735321), we get a palindrome (225968869522).

The spelling of 123537134201 in words is "one hundred twenty-three billion, five hundred thirty-seven million, one hundred thirty-four thousand, two hundred one".