123031132306 has 16 divisors (see below), whose sum is σ = 189569516544. Its totient is φ = 59841908784.

The previous prime is 123031132229. The next prime is 123031132313. The reversal of 123031132306 is 603231130321.

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, 256161 + ... + 558283.

It is an arithmetic number, because the mean of its divisors is an integer number (11848094784).

Almost surely, 2^123031132306 is an apocalyptic number.

123031132306 is a deficient number, since it is larger than the sum of its proper divisors (66538384238).

123031132306 is a wasteful number, since it uses less digits than its factorization.

123031132306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307665.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 123031132306 its reverse (603231130321), we get a palindrome (726262262627).

The spelling of 123031132306 in words is "one hundred twenty-three billion, thirty-one million, one hundred thirty-two thousand, three hundred six".