1401223011 has 32 divisors (see below), whose sum is σ = 2032128000. Its totient is φ = 855352320.

The previous prime is 1401223007. The next prime is 1401223027. The reversal of 1401223011 is 1103221041.

It is not a de Polignac number, because 1401223011 - 2² = 1401223007 is a prime.

It is a super-2 number, since 2×1401223011² = 3926851853111812242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401223051) 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 31 ways as a sum of consecutive naturals, for example, 1000890 + ... + 1002288.

It is an arithmetic number, because the mean of its divisors is an integer number (63504000).

Almost surely, 2^1401223011 is an apocalyptic number.

1401223011 is a deficient number, since it is larger than the sum of its proper divisors (630904989).

1401223011 is a wasteful number, since it uses less digits than its factorization.

1401223011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

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

The square root of 1401223011 is about 37432.9134719701. The cubic root of 1401223011 is about 1119.0146017656.

Adding to 1401223011 its reverse (1103221041), we get a palindrome (2504444052).

The spelling of 1401223011 in words is "one billion, four hundred one million, two hundred twenty-three thousand, eleven".