1013220213123 has 16 divisors (see below), whose sum is σ = 1365664244256. Its totient is φ = 668163256320.

The previous prime is 1013220213113. The next prime is 1013220213139. The reversal of 1013220213123 is 3213120223101.

It is not a de Polignac number, because 1013220213123 - 2⁹ = 1013220212611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1013220213123.

It is not an unprimeable number, because it can be changed into a prime (1013220213113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4271086 + ... + 4502067.

It is an arithmetic number, because the mean of its divisors is an integer number (85354015266).

Almost surely, 2^{1013220213123} is an apocalyptic number.

1013220213123 is a deficient number, since it is larger than the sum of its proper divisors (352444031133).

1013220213123 is a wasteful number, since it uses less digits than its factorization.

1013220213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8773574.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1013220213123 its reverse (3213120223101), we get a palindrome (4226340436224).

The spelling of 1013220213123 in words is "one trillion, thirteen billion, two hundred twenty million, two hundred thirteen thousand, one hundred twenty-three".