20507741003 has 2 divisors, whose sum is σ = 20507741004. Its totient is φ = 20507741002.

The previous prime is 20507740997. The next prime is 20507741039. The reversal of 20507741003 is 30014770502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20507741003 is a prime.

It is a super-2 number, since 2×20507741003² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20507741063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10253870501 + 10253870502.

It is an arithmetic number, because the mean of its divisors is an integer number (10253870502).

Almost surely, 2^20507741003 is an apocalyptic number.

20507741003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20507741003 is an equidigital number, since it uses as much as digits as its factorization.

20507741003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The spelling of 20507741003 in words is "twenty billion, five hundred seven million, seven hundred forty-one thousand, three".