1401000111 has 48 divisors (see below), whose sum is σ = 2465902080. Its totient is φ = 783503280.

The previous prime is 1401000101. The next prime is 1401000163. The reversal of 1401000111 is 1110001041.

It is not a de Polignac number, because 1401000111 - 2²¹ = 1398902959 is a prime.

It is a super-2 number, since 2×1401000111² = 3925602622044024642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1401000093 and 1401000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401000101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50916 + ... + 73446.

It is an arithmetic number, because the mean of its divisors is an integer number (51372960).

Almost surely, 2^1401000111 is an apocalyptic number.

1401000111 is a deficient number, since it is larger than the sum of its proper divisors (1064901969).

1401000111 is a wasteful number, since it uses less digits than its factorization.

1401000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22601 (or 22588 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1401000111 is about 37429.9360271962. The cubic root of 1401000111 is about 1118.9552627501.

Adding to 1401000111 its reverse (1110001041), we get a palindrome (2511001152).

The spelling of 1401000111 in words is "one billion, four hundred one million, one hundred eleven", and thus it is an aban number.