10321990530 has 32 divisors (see below), whose sum is σ = 24796879488. Its totient is φ = 2749852800.

The previous prime is 10321990463. The next prime is 10321990541. The reversal of 10321990530 is 3509912301.

It is a junction number, because it is equal to n+sod(n) for n = 10321990491 and 10321990500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135931 + ... + 197790.

It is an arithmetic number, because the mean of its divisors is an integer number (774902484).

Almost surely, 2^10321990530 is an apocalyptic number.

10321990530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10321990530 is an abundant number, since it is smaller than the sum of its proper divisors (14474888958).

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

10321990530 is a wasteful number, since it uses less digits than its factorization.

10321990530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334762.

The product of its (nonzero) digits is 7290, while the sum is 33.

The spelling of 10321990530 in words is "ten billion, three hundred twenty-one million, nine hundred ninety thousand, five hundred thirty".