1306020023 has 16 divisors (see below), whose sum is σ = 1647910656. Its totient is φ = 1005411840.

The previous prime is 1306020013. The next prime is 1306020061. The reversal of 1306020023 is 3200206031.

It is a cyclic number.

It is not a de Polignac number, because 1306020023 - 2⁴ = 1306020007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1306019983 and 1306020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306020013) 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, 95786 + ... + 108567.

It is an arithmetic number, because the mean of its divisors is an integer number (102994416).

Almost surely, 2^1306020023 is an apocalyptic number.

1306020023 is a deficient number, since it is larger than the sum of its proper divisors (341890633).

1306020023 is a wasteful number, since it uses less digits than its factorization.

1306020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204454.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1306020023 is about 36138.8990286090. The cubic root of 1306020023 is about 1093.0749585793.

Adding to 1306020023 its reverse (3200206031), we get a palindrome (4506226054).

The spelling of 1306020023 in words is "one billion, three hundred six million, twenty thousand, twenty-three".