123422311477 has 4 divisors (see below), whose sum is σ = 123819168096. Its totient is φ = 123025454860.

The previous prime is 123422311471. The next prime is 123422311531. The reversal of 123422311477 is 774113224321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774113224321 = 5347 ⋅144775243.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123422311477 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 (123422311471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198427843 + ... + 198428464.

It is an arithmetic number, because the mean of its divisors is an integer number (30954792024).

Almost surely, 2^123422311477 is an apocalyptic number.

It is an amenable number.

123422311477 is a deficient number, since it is larger than the sum of its proper divisors (396856619).

123422311477 is an equidigital number, since it uses as much as digits as its factorization.

123422311477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396856618.

The product of its digits is 56448, while the sum is 37.

Adding to 123422311477 its reverse (774113224321), we get a palindrome (897535535798).

The spelling of 123422311477 in words is "one hundred twenty-three billion, four hundred twenty-two million, three hundred eleven thousand, four hundred seventy-seven".