123012240001445 has 8 divisors (see below), whose sum is σ = 147662475229080. Its totient is φ = 98377933849600.

The previous prime is 123012240001319. The next prime is 123012240001447. The reversal of 123012240001445 is 544100042210321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49865940342724 + 73146299658721 = 7061582^2 + 8552561^2 .

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-123012240001445 is a prime.

It is a super-2 number, since 2×123012240001445² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012240001447) 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, 3982251956 + ... + 3982282845.

It is an arithmetic number, because the mean of its divisors is an integer number (18457809403635).

Almost surely, 2^{123012240001445} is an apocalyptic number.

It is an amenable number.

123012240001445 is a deficient number, since it is larger than the sum of its proper divisors (24650235227635).

123012240001445 is an equidigital number, since it uses as much as digits as its factorization.

123012240001445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7964537895.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 123012240001445 its reverse (544100042210321), we get a palindrome (667112282211766).

The spelling of 123012240001445 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, one thousand, four hundred forty-five".