51311201301 has 24 divisors (see below), whose sum is σ = 79511621280. Its totient is φ = 33027895152.

The previous prime is 51311201281. The next prime is 51311201363. The reversal of 51311201301 is 10310211315.

51311201301 is a `hidden beast` number, since 51 + 311 + 2 + 0 + 1 + 301 = 666.

51311201301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51311201301 - 2⁶ = 51311201237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51311208301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3633595 + ... + 3647688.

It is an arithmetic number, because the mean of its divisors is an integer number (3312984220).

Almost surely, 2^51311201301 is an apocalyptic number.

It is an amenable number.

51311201301 is a deficient number, since it is larger than the sum of its proper divisors (28200419979).

51311201301 is an equidigital number, since it uses as much as digits as its factorization.

51311201301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281327 (or 7281315 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 51311201301 its reverse (10310211315), we get a palindrome (61621412616).

The spelling of 51311201301 in words is "fifty-one billion, three hundred eleven million, two hundred one thousand, three hundred one".