1623131330 has 16 divisors (see below), whose sum is σ = 2926191744. Its totient is φ = 648240240.

The previous prime is 1623131311. The next prime is 1623131333. The reversal of 1623131330 is 331313261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1623131296 and 1623131305.

It is not an unprimeable number, because it can be changed into a prime (1623131333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119786 + ... + 132645.

It is an arithmetic number, because the mean of its divisors is an integer number (182886984).

Almost surely, 2^1623131330 is an apocalyptic number.

1623131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1623131330 is a deficient number, since it is larger than the sum of its proper divisors (1303060414).

1623131330 is a wasteful number, since it uses less digits than its factorization.

1623131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253081.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1623131330 is about 40288.1040755209. The cubic root of 1623131330 is about 1175.2165178181.

Adding to 1623131330 its reverse (331313261), we get a palindrome (1954444591).

The spelling of 1623131330 in words is "one billion, six hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty".