36121513123 has 2 divisors, whose sum is σ = 36121513124. Its totient is φ = 36121513122.

The previous prime is 36121513121. The next prime is 36121513157. The reversal of 36121513123 is 32131512163.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36121513123 - 2¹ = 36121513121 is a prime.

It is a super-2 number, since 2×36121513123² (a number of 22 digits) contains 22 as substring.

Together with 36121513121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 36121513091 and 36121513100.

It is not a weakly prime, because it can be changed into another prime (36121513121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18060756561 + 18060756562.

It is an arithmetic number, because the mean of its divisors is an integer number (18060756562).

Almost surely, 2^36121513123 is an apocalyptic number.

36121513123 is a deficient number, since it is larger than the sum of its proper divisors (1).

36121513123 is an equidigital number, since it uses as much as digits as its factorization.

36121513123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The spelling of 36121513123 in words is "thirty-six billion, one hundred twenty-one million, five hundred thirteen thousand, one hundred twenty-three".