20319863029 has 2 divisors, whose sum is σ = 20319863030. Its totient is φ = 20319863028.

The previous prime is 20319863023. The next prime is 20319863051. The reversal of 20319863029 is 92036891302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19593560529 + 726302500 = 139977^2 + 26950^2 .

It is a cyclic number.

It is not a de Polignac number, because 20319863029 - 2⁹ = 20319862517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20319863023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10159931514 + 10159931515.

It is an arithmetic number, because the mean of its divisors is an integer number (10159931515).

Almost surely, 2^20319863029 is an apocalyptic number.

It is an amenable number.

20319863029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20319863029 is an equidigital number, since it uses as much as digits as its factorization.

20319863029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 20319863029 in words is "twenty billion, three hundred nineteen million, eight hundred sixty-three thousand, twenty-nine".