311431020042301 has 4 divisors (see below), whose sum is σ = 314288185363900. Its totient is φ = 308573854720704.

The previous prime is 311431020042251. The next prime is 311431020042341. The reversal of 311431020042301 is 103240020134113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 140363611675225 + 171067408367076 = 11847515^2 + 13079274^2 .

It is a cyclic number.

It is not a de Polignac number, because 311431020042301 - 2⁷ = 311431020042173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431020042341) 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, 1428582660636 + ... + 1428582660853.

It is an arithmetic number, because the mean of its divisors is an integer number (78572046340975).

Almost surely, 2^{311431020042301} is an apocalyptic number.

It is an amenable number.

311431020042301 is a deficient number, since it is larger than the sum of its proper divisors (2857165321599).

311431020042301 is a wasteful number, since it uses less digits than its factorization.

311431020042301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857165321598.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311431020042301 its reverse (103240020134113), we get a palindrome (414671040176414).

The spelling of 311431020042301 in words is "three hundred eleven trillion, four hundred thirty-one billion, twenty million, forty-two thousand, three hundred one".