102022013 has 4 divisors (see below), whose sum is σ = 102125340. Its totient is φ = 101918688.

The previous prime is 102022009. The next prime is 102022027. The reversal of 102022013 is 310220201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310220201 = 19 ⋅16327379.

It can be written as a sum of positive squares in 2 ways, for example, as 58171129 + 43850884 = 7627^2 + 6622^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022013 - 2² = 102022009 is a prime.

It is a super-2 number, since 2×102022013² = 20816982273144338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021985 and 102022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50168 + ... + 52161.

It is an arithmetic number, because the mean of its divisors is an integer number (25531335).

Almost surely, 2^102022013 is an apocalyptic number.

It is an amenable number.

102022013 is a deficient number, since it is larger than the sum of its proper divisors (103327).

102022013 is an equidigital number, since it uses as much as digits as its factorization.

102022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103326.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102022013 is about 10100.5946854628. The cubic root of 102022013 is about 467.2664821735.

Adding to 102022013 its reverse (310220201), we get a palindrome (412242214).

The spelling of 102022013 in words is "one hundred two million, twenty-two thousand, thirteen".