13021121383 has 2 divisors, whose sum is σ = 13021121384. Its totient is φ = 13021121382.

The previous prime is 13021121381. The next prime is 13021121387. The reversal of 13021121383 is 38312112031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13021121383 - 2¹ = 13021121381 is a prime.

Together with 13021121381, 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 (13021121381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510560691 + 6510560692.

It is an arithmetic number, because the mean of its divisors is an integer number (6510560692).

Almost surely, 2^13021121383 is an apocalyptic number.

13021121383 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021121383 is an equidigital number, since it uses as much as digits as its factorization.

13021121383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 13021121383 in words is "thirteen billion, twenty-one million, one hundred twenty-one thousand, three hundred eighty-three".