1021311230 has 32 divisors (see below), whose sum is σ = 1891457568. Its totient is φ = 396812800.

The previous prime is 1021311211. The next prime is 1021311281. The reversal of 1021311230 is 321131201.

It is a super-2 number, since 2×1021311230² = 2086153257048225800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90185 + ... + 100875.

It is an arithmetic number, because the mean of its divisors is an integer number (59108049).

Almost surely, 2^1021311230 is an apocalyptic number.

1021311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021311230 is a deficient number, since it is larger than the sum of its proper divisors (870146338).

1021311230 is a wasteful number, since it uses less digits than its factorization.

1021311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1021311230 is about 31957.9603541903. The cubic root of 1021311230 is about 1007.0538692684.

Adding to 1021311230 its reverse (321131201), we get a palindrome (1342442431).

The spelling of 1021311230 in words is "one billion, twenty-one million, three hundred eleven thousand, two hundred thirty".