311140141 has 16 divisors (see below), whose sum is σ = 351477504. Its totient is φ = 273478464.

The previous prime is 311140139. The next prime is 311140153. The reversal of 311140141 is 141041113.

It is a cyclic number.

It is not a de Polignac number, because 311140141 - 2¹ = 311140139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311140111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15726 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (21967344).

Almost surely, 2^311140141 is an apocalyptic number.

It is an amenable number.

311140141 is a deficient number, since it is larger than the sum of its proper divisors (40337363).

311140141 is a wasteful number, since it uses less digits than its factorization.

311140141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 311140141 is about 17639.1649745672. The cubic root of 311140141 is about 677.6186461782.

Adding to 311140141 its reverse (141041113), we get a palindrome (452181254).

The spelling of 311140141 in words is "three hundred eleven million, one hundred forty thousand, one hundred forty-one".