1321123010 has 16 divisors (see below), whose sum is σ = 2503180800. Its totient is φ = 500636016.

The previous prime is 1321123003. The next prime is 1321123039. The reversal of 1321123010 is 103211231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3476450 + ... + 3476829.

It is an arithmetic number, because the mean of its divisors is an integer number (156448800).

Almost surely, 2^1321123010 is an apocalyptic number.

1321123010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321123010 is a deficient number, since it is larger than the sum of its proper divisors (1182057790).

1321123010 is a wasteful number, since it uses less digits than its factorization.

1321123010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6953305.

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

The square root of 1321123010 is about 36347.2558799148. The cubic root of 1321123010 is about 1097.2723077931.

Adding to 1321123010 its reverse (103211231), we get a palindrome (1424334241).

The spelling of 1321123010 in words is "one billion, three hundred twenty-one million, one hundred twenty-three thousand, ten".