1023201269 has 4 divisors (see below), whose sum is σ = 1024043244. Its totient is φ = 1022359296.

The previous prime is 1023201247. The next prime is 1023201301. The reversal of 1023201269 is 9621023201.

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 127396369 + 895804900 = 11287^2 + 29930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023201269 - 2⁸ = 1023201013 is a prime.

It is a super-2 number, since 2×1023201269² = 2093881673766420722, 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 (1023201209) 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, 419162 + ... + 421595.

It is an arithmetic number, because the mean of its divisors is an integer number (256010811).

Almost surely, 2^1023201269 is an apocalyptic number.

It is an amenable number.

1023201269 is a deficient number, since it is larger than the sum of its proper divisors (841975).

1023201269 is an equidigital number, since it uses as much as digits as its factorization.

1023201269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841974.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1023201269 is about 31987.5173935084. The cubic root of 1023201269 is about 1007.6747045604.

The spelling of 1023201269 in words is "one billion, twenty-three million, two hundred one thousand, two hundred sixty-nine".