1000401311 has 8 divisors (see below), whose sum is σ = 1231263264. Its totient is φ = 791526240.

The previous prime is 1000401287. The next prime is 1000401323. The reversal of 1000401311 is 1131040001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000401311 - 2¹⁴ = 1000384927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000401292 and 1000401301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000401361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5496620 + ... + 5496801.

It is an arithmetic number, because the mean of its divisors is an integer number (153907908).

Almost surely, 2^1000401311 is an apocalyptic number.

1000401311 is a deficient number, since it is larger than the sum of its proper divisors (230861953).

1000401311 is a wasteful number, since it uses less digits than its factorization.

1000401311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10993441.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1000401311 is about 31629.1212492538. The cubic root of 1000401311 is about 1000.1337524428.

Adding to 1000401311 its reverse (1131040001), we get a palindrome (2131441312).

The spelling of 1000401311 in words is "one billion, four hundred one thousand, three hundred eleven".