1020213001 has 6 divisors (see below), whose sum is σ = 1066499210. Its totient is φ = 975855408.

The previous prime is 1020212989. The next prime is 1020213013. The reversal of 1020213001 is 1003120201.

It is an interprime number because it is at equal distance from previous prime (1020212989) and next prime (1020213013).

It can be written as a sum of positive squares in only one way, i.e., 1019141776 + 1071225 = 31924^2 + 1035^2 .

It is not a de Polignac number, because 1020213001 - 2²⁹ = 483342089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020213041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 963756 + ... + 964813.

Almost surely, 2^1020213001 is an apocalyptic number.

It is an amenable number.

1020213001 is a deficient number, since it is larger than the sum of its proper divisors (46286209).

1020213001 is an equidigital number, since it uses as much as digits as its factorization.

1020213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928615 (or 1928592 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1020213001 is about 31940.7733312767. The cubic root of 1020213001 is about 1006.6927738479.

Adding to 1020213001 its reverse (1003120201), we get a palindrome (2023333202).

The spelling of 1020213001 in words is "one billion, twenty million, two hundred thirteen thousand, one".