122400112543013 has 4 divisors (see below), whose sum is σ = 122402706417420. Its totient is φ = 122397518668608.

The previous prime is 122400112542991. The next prime is 122400112543039. The reversal of 122400112543013 is 310345211004221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71200907191969 + 51199205351044 = 8438063^2 + 7155362^2 .

It is a cyclic number.

It is not a de Polignac number, because 122400112543013 - 2²² = 122400108348709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122400112548013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296866420 + ... + 1296960797.

It is an arithmetic number, because the mean of its divisors is an integer number (30600676604355).

Almost surely, 2^{122400112543013} is an apocalyptic number.

It is an amenable number.

122400112543013 is a deficient number, since it is larger than the sum of its proper divisors (2593874407).

122400112543013 is an equidigital number, since it uses as much as digits as its factorization.

122400112543013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593874406.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 122400112543013 its reverse (310345211004221), we get a palindrome (432745323547234).

The spelling of 122400112543013 in words is "one hundred twenty-two trillion, four hundred billion, one hundred twelve million, five hundred forty-three thousand, thirteen".