122312143400111 has 12 divisors (see below), whose sum is σ = 142506958664880. Its totient is φ = 104672832677280.

The previous prime is 122312143400099. The next prime is 122312143400123. The reversal of 122312143400111 is 111004341213221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122312143400099) and next prime (122312143400123).

It is not a de Polignac number, because 122312143400111 - 2³⁸ = 122037265493167 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 (122312143400131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977913766 + ... + 1977975603.

It is an arithmetic number, because the mean of its divisors is an integer number (11875579888740).

Almost surely, 2^{122312143400111} is an apocalyptic number.

122312143400111 is a deficient number, since it is larger than the sum of its proper divisors (20194815264769).

122312143400111 is an equidigital number, since it uses as much as digits as its factorization.

122312143400111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955890014 (or 3955890007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 122312143400111 its reverse (111004341213221), we get a palindrome (233316484613332).

The spelling of 122312143400111 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred forty-three million, four hundred thousand, one hundred eleven".