1020102023 has 4 divisors (see below), whose sum is σ = 1020283968. Its totient is φ = 1019920080.

The previous prime is 1020102011. The next prime is 1020102037. The reversal of 1020102023 is 3202010201.

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: 3202010201 = 13 ⋅246308477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020102023 is a prime.

It is a super-3 number, since 3×1020102023³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020101995 and 1020102013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020102043) 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, 82286 + ... + 93867.

It is an arithmetic number, because the mean of its divisors is an integer number (255070992).

Almost surely, 2^1020102023 is an apocalyptic number.

1020102023 is a deficient number, since it is larger than the sum of its proper divisors (181945).

1020102023 is an equidigital number, since it uses as much as digits as its factorization.

1020102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181944.

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

The square root of 1020102023 is about 31939.0360374261. The cubic root of 1020102023 is about 1006.6562700976.

Adding to 1020102023 its reverse (3202010201), we get a palindrome (4222112224).

The spelling of 1020102023 in words is "one billion, twenty million, one hundred two thousand, twenty-three".