1301020993 has 4 divisors (see below), whose sum is σ = 1322349268. Its totient is φ = 1279692720.

The previous prime is 1301020951. The next prime is 1301021011. The reversal of 1301020993 is 3990201031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 473193009 + 827827984 = 21753^2 + 28772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301020793) 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, 10664046 + ... + 10664167.

It is an arithmetic number, because the mean of its divisors is an integer number (330587317).

Almost surely, 2^1301020993 is an apocalyptic number.

It is an amenable number.

1301020993 is a deficient number, since it is larger than the sum of its proper divisors (21328275).

1301020993 is an equidigital number, since it uses as much as digits as its factorization.

1301020993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21328274.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1301020993 is about 36069.6686011945. The cubic root of 1301020993 is about 1091.6785273954.

The spelling of 1301020993 in words is "one billion, three hundred one million, twenty thousand, nine hundred ninety-three".