1721120230 has 16 divisors (see below), whose sum is σ = 3141651744. Its totient is φ = 678751360.

The previous prime is 1721120227. The next prime is 1721120243. The reversal of 1721120230 is 320211271.

It is a super-2 number, since 2×1721120230² = 5924509692230505800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1721120198 and 1721120207.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1211347 + ... + 1212766.

It is an arithmetic number, because the mean of its divisors is an integer number (196353234).

Almost surely, 2^1721120230 is an apocalyptic number.

1721120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1721120230 is a deficient number, since it is larger than the sum of its proper divisors (1420531514).

1721120230 is a wasteful number, since it uses less digits than its factorization.

1721120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424191.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1721120230 is about 41486.3860802553. The cubic root of 1721120230 is about 1198.4053424763.

The spelling of 1721120230 in words is "one billion, seven hundred twenty-one million, one hundred twenty thousand, two hundred thirty".