1520123330 has 64 divisors (see below), whose sum is σ = 3028752000. Its totient is φ = 544734720.

The previous prime is 1520123287. The next prime is 1520123359. The reversal of 1520123330 is 333210251.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2671286 + ... + 2671854.

It is an arithmetic number, because the mean of its divisors is an integer number (47324250).

Almost surely, 2^1520123330 is an apocalyptic number.

1520123330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520123330 is a deficient number, since it is larger than the sum of its proper divisors (1508628670).

1520123330 is a wasteful number, since it uses less digits than its factorization.

1520123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1520123330 is about 38988.7590210307. The cubic root of 1520123330 is about 1149.8105119425.

Adding to 1520123330 its reverse (333210251), we get a palindrome (1853333581).

The spelling of 1520123330 in words is "one billion, five hundred twenty million, one hundred twenty-three thousand, three hundred thirty".