1023420213293 has 2 divisors, whose sum is σ = 1023420213294. Its totient is φ = 1023420213292.

The previous prime is 1023420213247. The next prime is 1023420213313. The reversal of 1023420213293 is 3923120243201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845081234089 + 178338979204 = 919283^2 + 422302^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023420213293 - 2⁶ = 1023420213229 is a prime.

It is a super-2 number, since 2×1023420213293² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023420213223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511710106646 + 511710106647.

It is an arithmetic number, because the mean of its divisors is an integer number (511710106647).

Almost surely, 2^{1023420213293} is an apocalyptic number.

It is an amenable number.

1023420213293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023420213293 is an equidigital number, since it uses as much as digits as its factorization.

1023420213293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 1023420213293 its reverse (3923120243201), we get a palindrome (4946540456494).

The spelling of 1023420213293 in words is "one trillion, twenty-three billion, four hundred twenty million, two hundred thirteen thousand, two hundred ninety-three".