1011223401 has 4 divisors (see below), whose sum is σ = 1348297872. Its totient is φ = 674148932.

The previous prime is 1011223387. The next prime is 1011223469. The reversal of 1011223401 is 1043221101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011223401 - 2¹⁴ = 1011207017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011223481) 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, 168537231 + ... + 168537236.

It is an arithmetic number, because the mean of its divisors is an integer number (337074468).

Almost surely, 2^1011223401 is an apocalyptic number.

It is an amenable number.

1011223401 is a deficient number, since it is larger than the sum of its proper divisors (337074471).

1011223401 is an equidigital number, since it uses as much as digits as its factorization.

1011223401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337074470.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1011223401 is about 31799.7390083629. The cubic root of 1011223401 is about 1003.7272242066.

Adding to 1011223401 its reverse (1043221101), we get a palindrome (2054444502).

The spelling of 1011223401 in words is "one billion, eleven million, two hundred twenty-three thousand, four hundred one".