123734540045 has 16 divisors (see below), whose sum is σ = 149216437440. Its totient is φ = 98498400000.

The previous prime is 123734539991. The next prime is 123734540113. The reversal of 123734540045 is 540045437321.

It is not a de Polignac number, because 123734540045 - 2³⁶ = 55015063309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123734539990 and 123734540008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272101 + ... + 1365909.

It is an arithmetic number, because the mean of its divisors is an integer number (9326027340).

Almost surely, 2^123734540045 is an apocalyptic number.

It is an amenable number.

123734540045 is a deficient number, since it is larger than the sum of its proper divisors (25481897395).

123734540045 is a wasteful number, since it uses less digits than its factorization.

123734540045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95116.

The product of its (nonzero) digits is 201600, while the sum is 38.

Adding to 123734540045 its reverse (540045437321), we get a palindrome (663779977366).

The spelling of 123734540045 in words is "one hundred twenty-three billion, seven hundred thirty-four million, five hundred forty thousand, forty-five".