990330123434 has 32 divisors (see below), whose sum is σ = 1541040821760. Its totient is φ = 476809804800.

The previous prime is 990330123359. The next prime is 990330123437. The reversal of 990330123434 is 434321033099.

It is a junction number, because it is equal to n+sod(n) for n = 990330123391 and 990330123400.

It is not an unprimeable number, because it can be changed into a prime (990330123437) 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 in 15 ways as a sum of consecutive naturals, for example, 96396122 + ... + 96406394.

It is an arithmetic number, because the mean of its divisors is an integer number (48157525680).

Almost surely, 2^990330123434 is an apocalyptic number.

990330123434 is a deficient number, since it is larger than the sum of its proper divisors (550710698326).

990330123434 is a wasteful number, since it uses less digits than its factorization.

990330123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17886.

The product of its (nonzero) digits is 209952, while the sum is 41.

The spelling of 990330123434 in words is "nine hundred ninety billion, three hundred thirty million, one hundred twenty-three thousand, four hundred thirty-four".