123414021345 has 16 divisors (see below), whose sum is σ = 206047757952. Its totient is φ = 62959036800.

The previous prime is 123414021343. The next prime is 123414021359. The reversal of 123414021345 is 543120414321.

It is not a de Polignac number, because 123414021345 - 2¹ = 123414021343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123414021343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178860556 + ... + 178861245.

It is an arithmetic number, because the mean of its divisors is an integer number (12877984872).

Almost surely, 2^123414021345 is an apocalyptic number.

123414021345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123414021345 is a deficient number, since it is larger than the sum of its proper divisors (82633736607).

123414021345 is a wasteful number, since it uses less digits than its factorization.

123414021345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357721832.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 123414021345 its reverse (543120414321), we get a palindrome (666534435666).

The spelling of 123414021345 in words is "one hundred twenty-three billion, four hundred fourteen million, twenty-one thousand, three hundred forty-five".