1020223023121 has 2 divisors, whose sum is σ = 1020223023122. Its totient is φ = 1020223023120.

The previous prime is 1020223023109. The next prime is 1020223023137. The reversal of 1020223023121 is 1213203220201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608655866896 + 411567156225 = 780164^2 + 641535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020223023121 - 2⁷ = 1020223022993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020223021121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510111511560 + 510111511561.

It is an arithmetic number, because the mean of its divisors is an integer number (510111511561).

Almost surely, 2^{1020223023121} is an apocalyptic number.

It is an amenable number.

1020223023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020223023121 is an equidigital number, since it uses as much as digits as its factorization.

1020223023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1020223023121 its reverse (1213203220201), we get a palindrome (2233426243322).

The spelling of 1020223023121 in words is "one trillion, twenty billion, two hundred twenty-three million, twenty-three thousand, one hundred twenty-one".