1011123301 has 4 divisors (see below), whose sum is σ = 1011321612. Its totient is φ = 1010924992.

The previous prime is 1011123299. The next prime is 1011123307. The reversal of 1011123301 is 1033211101.

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 454116100 + 557007201 = 21310^2 + 23601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011123301 - 2¹ = 1011123299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011123307) 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, 91300 + ... + 101773.

It is an arithmetic number, because the mean of its divisors is an integer number (252830403).

Almost surely, 2^1011123301 is an apocalyptic number.

It is an amenable number.

1011123301 is a deficient number, since it is larger than the sum of its proper divisors (198311).

1011123301 is an equidigital number, since it uses as much as digits as its factorization.

1011123301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198310.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1011123301 is about 31798.1650571224. The cubic root of 1011123301 is about 1003.6941037934.

Adding to 1011123301 its reverse (1033211101), we get a palindrome (2044334402).

The spelling of 1011123301 in words is "one billion, eleven million, one hundred twenty-three thousand, three hundred one".