1243234122 has 32 divisors (see below), whose sum is σ = 2686342848. Its totient is φ = 381303936.

The previous prime is 1243234121. The next prime is 1243234133. The reversal of 1243234122 is 2214323421.

It is a happy number.

It is a super-2 number, since 2×1243234122² = 3091262164210221768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243234092 and 1243234101.

It is not an unprimeable number, because it can be changed into a prime (1243234121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048 + ... + 49875.

It is an arithmetic number, because the mean of its divisors is an integer number (83948214).

Almost surely, 2^1243234122 is an apocalyptic number.

1243234122 is an abundant number, since it is smaller than the sum of its proper divisors (1443108726).

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

1243234122 is a wasteful number, since it uses less digits than its factorization.

1243234122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51254.

The product of its digits is 2304, while the sum is 24.

The square root of 1243234122 is about 35259.5252662313. The cubic root of 1243234122 is about 1075.2702755068.

Adding to 1243234122 its reverse (2214323421), we get a palindrome (3457557543).

The spelling of 1243234122 in words is "one billion, two hundred forty-three million, two hundred thirty-four thousand, one hundred twenty-two".