1020123213113 has 16 divisors (see below), whose sum is σ = 1111742461440. Its totient is φ = 932481849600.

The previous prime is 1020123213089. The next prime is 1020123213173. The reversal of 1020123213113 is 3113123210201.

It is a happy number.

1020123213113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1020123213113 - 2¹⁶ = 1020123147577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020123213173) 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, 2371178 + ... + 2768163.

It is an arithmetic number, because the mean of its divisors is an integer number (69483903840).

Almost surely, 2^{1020123213113} is an apocalyptic number.

It is an amenable number.

1020123213113 is a deficient number, since it is larger than the sum of its proper divisors (91619248327).

1020123213113 is a wasteful number, since it uses less digits than its factorization.

1020123213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139728.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1020123213113 its reverse (3113123210201), we get a palindrome (4133246423314).

The spelling of 1020123213113 in words is "one trillion, twenty billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred thirteen".