1020211301 has 4 divisors (see below), whose sum is σ = 1023101772. Its totient is φ = 1017320832.

The previous prime is 1020211279. The next prime is 1020211307. The reversal of 1020211301 is 1031120201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1031120201 = 29 ⋅35555869.

It can be written as a sum of positive squares in 2 ways, for example, as 500416900 + 519794401 = 22370^2 + 22799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020211301 is a prime.

It is a super-2 number, since 2×1020211301² = 2081662197376225202, which contains 22 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 (1020211307) 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, 1444706 + ... + 1445411.

It is an arithmetic number, because the mean of its divisors is an integer number (255775443).

Almost surely, 2^1020211301 is an apocalyptic number.

It is an amenable number.

1020211301 is a deficient number, since it is larger than the sum of its proper divisors (2890471).

1020211301 is an equidigital number, since it uses as much as digits as its factorization.

1020211301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890470.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1020211301 is about 31940.7467195117. The cubic root of 1020211301 is about 1006.6922146906.

Adding to 1020211301 its reverse (1031120201), we get a palindrome (2051331502).

The spelling of 1020211301 in words is "one billion, twenty million, two hundred eleven thousand, three hundred one".