123430022132 has 6 divisors (see below), whose sum is σ = 216002538738. Its totient is φ = 61715011064.

The previous prime is 123430022117. The next prime is 123430022137. The reversal of 123430022132 is 231220034321.

It can be written as a sum of positive squares in only one way, i.e., 73502800996 + 49927221136 = 271114^2 + 223444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123430022098 and 123430022107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123430022137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15428752763 + ... + 15428752770.

It is an arithmetic number, because the mean of its divisors is an integer number (36000423123).

Almost surely, 2^123430022132 is an apocalyptic number.

It is an amenable number.

123430022132 is a deficient number, since it is larger than the sum of its proper divisors (92572516606).

123430022132 is a wasteful number, since it uses less digits than its factorization.

123430022132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30857505537 (or 30857505535 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123430022132 its reverse (231220034321), we get a palindrome (354650056453).

The spelling of 123430022132 in words is "one hundred twenty-three billion, four hundred thirty million, twenty-two thousand, one hundred thirty-two".