1012103211321 has 32 divisors (see below), whose sum is σ = 1502364136320. Its totient is φ = 673408354752.

The previous prime is 1012103211271. The next prime is 1012103211337. The reversal of 1012103211321 is 1231123012101.

1012103211321 is a `hidden beast` number, since 1 + 0 + 1 + 21 + 0 + 321 + 1 + 321 = 666.

It is not a de Polignac number, because 1012103211321 - 2⁷ = 1012103211193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012103211294 and 1012103211303.

It is not an unprimeable number, because it can be changed into a prime (1012103211521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30641211 + ... + 30674223.

It is an arithmetic number, because the mean of its divisors is an integer number (46948879260).

Almost surely, 2^{1012103211321} is an apocalyptic number.

It is an amenable number.

1012103211321 is a deficient number, since it is larger than the sum of its proper divisors (490260924999).

1012103211321 is a wasteful number, since it uses less digits than its factorization.

1012103211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35222 (or 35216 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1012103211321 its reverse (1231123012101), we get a palindrome (2243226223422).

The spelling of 1012103211321 in words is "one trillion, twelve billion, one hundred three million, two hundred eleven thousand, three hundred twenty-one".