122623421243452 has 6 divisors (see below), whose sum is σ = 214590987176048. Its totient is φ = 61311710621724.

The previous prime is 122623421243431. The next prime is 122623421243459. The reversal of 122623421243452 is 254342124326221.

It is a junction number, because it is equal to n+sod(n) for n = 122623421243399 and 122623421243408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122623421243459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15327927655428 + ... + 15327927655435.

Almost surely, 2^{122623421243452} is an apocalyptic number.

It is an amenable number.

122623421243452 is a deficient number, since it is larger than the sum of its proper divisors (91967565932596).

122623421243452 is a wasteful number, since it uses less digits than its factorization.

122623421243452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30655855310867 (or 30655855310865 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 43.

Adding to 122623421243452 its reverse (254342124326221), we get a palindrome (376965545569673).

The spelling of 122623421243452 in words is "one hundred twenty-two trillion, six hundred twenty-three billion, four hundred twenty-one million, two hundred forty-three thousand, four hundred fifty-two".