1020253211 has 2 divisors, whose sum is σ = 1020253212. Its totient is φ = 1020253210.

The previous prime is 1020253187. The next prime is 1020253231. The reversal of 1020253211 is 1123520201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020253211 - 2²⁶ = 953144347 is a prime.

It is a super-2 number, since 2×1020253211² = 2081833229111621042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020253211.

It is not a weakly prime, because it can be changed into another prime (1020253231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510126605 + 510126606.

It is an arithmetic number, because the mean of its divisors is an integer number (510126606).

Almost surely, 2^1020253211 is an apocalyptic number.

1020253211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020253211 is an equidigital number, since it uses as much as digits as its factorization.

1020253211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1020253211 is about 31941.4027713249. The cubic root of 1020253211 is about 1006.7059993817.

Adding to 1020253211 its reverse (1123520201), we get a palindrome (2143773412).

The spelling of 1020253211 in words is "one billion, twenty million, two hundred fifty-three thousand, two hundred eleven".