123012240133045 has 8 divisors (see below), whose sum is σ = 155383882273440. Its totient is φ = 93230329363920.

The previous prime is 123012240133033. The next prime is 123012240133049. The reversal of 123012240133045 is 540331042210321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123012240133045 is a prime.

It is a super-2 number, since 2×123012240133045² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123012240132998 and 123012240133016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012240133049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647432842711 + ... + 647432842900.

It is an arithmetic number, because the mean of its divisors is an integer number (19422985284180).

Almost surely, 2^{123012240133045} is an apocalyptic number.

It is an amenable number.

123012240133045 is a deficient number, since it is larger than the sum of its proper divisors (32371642140395).

123012240133045 is a wasteful number, since it uses less digits than its factorization.

123012240133045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294865685635.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 123012240133045 its reverse (540331042210321), we get a palindrome (663343282343366).

The spelling of 123012240133045 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, one hundred thirty-three thousand, forty-five".