20310551383 has 2 divisors, whose sum is σ = 20310551384. Its totient is φ = 20310551382.

The previous prime is 20310551381. The next prime is 20310551407. The reversal of 20310551383 is 38315501302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20310551383 - 2¹ = 20310551381 is a prime.

Together with 20310551381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20310551381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155275691 + 10155275692.

It is an arithmetic number, because the mean of its divisors is an integer number (10155275692).

Almost surely, 2^20310551383 is an apocalyptic number.

20310551383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310551383 is an equidigital number, since it uses as much as digits as its factorization.

20310551383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 20310551383 in words is "twenty billion, three hundred ten million, five hundred fifty-one thousand, three hundred eighty-three".