1260021230 has 32 divisors (see below), whose sum is σ = 2445678144. Its totient is φ = 464633856.

The previous prime is 1260021223. The next prime is 1260021247. The reversal of 1260021230 is 321200621.

It is a junction number, because it is equal to n+sod(n) for n = 1260021199 and 1260021208.

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 15 ways as a sum of consecutive naturals, for example, 101102 + ... + 112878.

It is an arithmetic number, because the mean of its divisors is an integer number (76427442).

Almost surely, 2^1260021230 is an apocalyptic number.

1260021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1260021230 is a deficient number, since it is larger than the sum of its proper divisors (1185656914).

1260021230 is a wasteful number, since it uses less digits than its factorization.

1260021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1260021230 is about 35496.7777410852. Note that the first 4 decimals coincide. The cubic root of 1260021230 is about 1080.0883643977.

Adding to 1260021230 its reverse (321200621), we get a palindrome (1581221851).

The spelling of 1260021230 in words is "one billion, two hundred sixty million, twenty-one thousand, two hundred thirty".