1020213011 has 4 divisors (see below), whose sum is σ = 1055392800. Its totient is φ = 985033224.

The previous prime is 1020212989. The next prime is 1020213013. The reversal of 1020213011 is 1103120201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1103120201 = 89 ⋅12394609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020213011 is a prime.

It is a super-2 number, since 2×1020213011² = 2081669175627372242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020212983 and 1020213001.

It is not an unprimeable number, because it can be changed into a prime (1020213013) 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, 17589851 + ... + 17589908.

It is an arithmetic number, because the mean of its divisors is an integer number (263848200).

Almost surely, 2^1020213011 is an apocalyptic number.

1020213011 is a deficient number, since it is larger than the sum of its proper divisors (35179789).

1020213011 is an equidigital number, since it uses as much as digits as its factorization.

1020213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35179788.

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

The square root of 1020213011 is about 31940.7734878165. The cubic root of 1020213011 is about 1006.6927771371.

Adding to 1020213011 its reverse (1103120201), we get a palindrome (2123333212).

The spelling of 1020213011 in words is "one billion, twenty million, two hundred thirteen thousand, eleven".