401213011 has 4 divisors (see below), whose sum is σ = 401358952. Its totient is φ = 401067072.

The previous prime is 401212993. The next prime is 401213023. The reversal of 401213011 is 110312104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401213011 - 2¹⁵ = 401180243 is a prime.

It is a super-2 number, since 2×401213011² = 321943760391372242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401212982 and 401213000.

It is not an unprimeable number, because it can be changed into a prime (401213041) 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, 68766 + ... + 74371.

It is an arithmetic number, because the mean of its divisors is an integer number (100339738).

Almost surely, 2^401213011 is an apocalyptic number.

401213011 is a deficient number, since it is larger than the sum of its proper divisors (145941).

401213011 is a wasteful number, since it uses less digits than its factorization.

401213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145940.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 401213011 is about 20030.3023192362. The cubic root of 401213011 is about 737.5503432454.

Adding to 401213011 its reverse (110312104), we get a palindrome (511525115).

The spelling of 401213011 in words is "four hundred one million, two hundred thirteen thousand, eleven".