1401420311 has 8 divisors (see below), whose sum is σ = 1406767824. Its totient is φ = 1396083520.

The previous prime is 1401420301. The next prime is 1401420323. The reversal of 1401420311 is 1130241041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401420311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401420311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401420301) 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, 335045 + ... + 339201.

It is an arithmetic number, because the mean of its divisors is an integer number (175845978).

Almost surely, 2^1401420311 is an apocalyptic number.

1401420311 is a deficient number, since it is larger than the sum of its proper divisors (5347513).

1401420311 is an equidigital number, since it uses as much as digits as its factorization.

1401420311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1401420311 is about 37435.5487605030. The cubic root of 1401420311 is about 1119.0671204624.

Adding to 1401420311 its reverse (1130241041), we get a palindrome (2531661352).

The spelling of 1401420311 in words is "one billion, four hundred one million, four hundred twenty thousand, three hundred eleven".