20130234412993 has 2 divisors, whose sum is σ = 20130234412994. Its totient is φ = 20130234412992.

The previous prime is 20130234412991. The next prime is 20130234413059. The reversal of 20130234412993 is 39921443203102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11012389154064 + 9117845258929 = 3318492^2 + 3019577^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130234412993 - 2¹ = 20130234412991 is a prime.

Together with 20130234412991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20130234412991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065117206496 + 10065117206497.

It is an arithmetic number, because the mean of its divisors is an integer number (10065117206497).

Almost surely, 2^{20130234412993} is an apocalyptic number.

It is an amenable number.

20130234412993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130234412993 is an equidigital number, since it uses as much as digits as its factorization.

20130234412993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 20130234412993 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-four million, four hundred twelve thousand, nine hundred ninety-three".