213420011023 has 16 divisors (see below), whose sum is σ = 216628187776. Its totient is φ = 210242783520.

The previous prime is 213420011017. The next prime is 213420011029. The reversal of 213420011023 is 320110024312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213420011017) and next prime (213420011029).

It is a cyclic number.

It is not a de Polignac number, because 213420011023 - 2²¹ = 213417913871 is a prime.

It is a super-2 number, since 2×213420011023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213420011029) 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, 9045640 + ... + 9069202.

It is an arithmetic number, because the mean of its divisors is an integer number (13539261736).

Almost surely, 2^213420011023 is an apocalyptic number.

213420011023 is a deficient number, since it is larger than the sum of its proper divisors (3208176753).

213420011023 is a wasteful number, since it uses less digits than its factorization.

213420011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24214.

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

Adding to 213420011023 its reverse (320110024312), we get a palindrome (533530035335).

The spelling of 213420011023 in words is "two hundred thirteen billion, four hundred twenty million, eleven thousand, twenty-three".