1020023213 has 8 divisors (see below), whose sum is σ = 1133748576. Its totient is φ = 909797200.

The previous prime is 1020023203. The next prime is 1020023261. The reversal of 1020023213 is 3123200201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020023213 - 2⁴ = 1020023197 is a prime.

It is a super-3 number, since 3×1020023213³ (a number of 28 digits) contains 333 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 (1020023203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874223 + ... + 875388.

It is an arithmetic number, because the mean of its divisors is an integer number (141718572).

Almost surely, 2^1020023213 is an apocalyptic number.

It is an amenable number.

1020023213 is a deficient number, since it is larger than the sum of its proper divisors (113725363).

1020023213 is a wasteful number, since it uses less digits than its factorization.

1020023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749675.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1020023213 is about 31937.8022568867. The cubic root of 1020023213 is about 1006.6303456894.

Adding to 1020023213 its reverse (3123200201), we get a palindrome (4143223414).

The spelling of 1020023213 in words is "one billion, twenty million, twenty-three thousand, two hundred thirteen".