20113018002949 has 2 divisors, whose sum is σ = 20113018002950. Its totient is φ = 20113018002948.

The previous prime is 20113018002923. The next prime is 20113018003049. The reversal of 20113018002949 is 94920081031102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11944385284225 + 8168632718724 = 3456065^2 + 2858082^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113018002949 - 2⁹ = 20113018002437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113018002919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056509001474 + 10056509001475.

It is an arithmetic number, because the mean of its divisors is an integer number (10056509001475).

Almost surely, 2^{20113018002949} is an apocalyptic number.

It is an amenable number.

20113018002949 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113018002949 is an equidigital number, since it uses as much as digits as its factorization.

20113018002949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 20113018002949 in words is "twenty trillion, one hundred thirteen billion, eighteen million, two thousand, nine hundred forty-nine".