1345123332 has 36 divisors (see below), whose sum is σ = 3885912576. Its totient is φ = 384320880.

The previous prime is 1345123319. The next prime is 1345123337. The reversal of 1345123332 is 2333215431.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1345123296 and 1345123305.

It is not an unprimeable number, because it can be changed into a prime (1345123337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2668644 + ... + 2669147.

It is an arithmetic number, because the mean of its divisors is an integer number (107942016).

Almost surely, 2^1345123332 is an apocalyptic number.

1345123332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345123332 is an abundant number, since it is smaller than the sum of its proper divisors (2540789244).

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

1345123332 is a wasteful number, since it uses less digits than its factorization.

1345123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337808 (or 5337803 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 1345123332 is about 36675.9230558687. The cubic root of 1345123332 is about 1103.8770440412.

Adding to 1345123332 its reverse (2333215431), we get a palindrome (3678338763).

The spelling of 1345123332 in words is "one billion, three hundred forty-five million, one hundred twenty-three thousand, three hundred thirty-two".