3113721401477 has 2 divisors, whose sum is σ = 3113721401478. Its totient is φ = 3113721401476.

The previous prime is 3113721401473. The next prime is 3113721401489. The reversal of 3113721401477 is 7741041273113.

It is a Cunningham number, because it is equal to 1764574²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3113721401476 + 1 = 1764574^2 + 1^2 .

It is an emirp because it is prime and its reverse (7741041273113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3113721401477 - 2² = 3113721401473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113721401473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556860700738 + 1556860700739.

It is an arithmetic number, because the mean of its divisors is an integer number (1556860700739).

Almost surely, 2^{3113721401477} is an apocalyptic number.

It is an amenable number.

3113721401477 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113721401477 is an equidigital number, since it uses as much as digits as its factorization.

3113721401477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 3113721401477 in words is "three trillion, one hundred thirteen billion, seven hundred twenty-one million, four hundred one thousand, four hundred seventy-seven".