1223431122534 has 16 divisors (see below), whose sum is σ = 2447067095472. Its totient is φ = 407776232448.

The previous prime is 1223431122499. The next prime is 1223431122559. The reversal of 1223431122534 is 4352211343221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1223431122495 and 1223431122504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8457739 + ... + 8601174.

It is an arithmetic number, because the mean of its divisors is an integer number (152941693467).

Almost surely, 2^{1223431122534} is an apocalyptic number.

1223431122534 is an abundant number, since it is smaller than the sum of its proper divisors (1223635972938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223431122534 is a wasteful number, since it uses less digits than its factorization.

1223431122534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17070871.

The product of its digits is 34560, while the sum is 33.

Adding to 1223431122534 its reverse (4352211343221), we get a palindrome (5575642465755).

The spelling of 1223431122534 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-one million, one hundred twenty-two thousand, five hundred thirty-four".