4130020111961 has 2 divisors, whose sum is σ = 4130020111962. Its totient is φ = 4130020111960.

The previous prime is 4130020111949. The next prime is 4130020112047. The reversal of 4130020111961 is 1691110200314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3821950710361 + 308069401600 = 1954981^2 + 555040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4130020111961 is a prime.

It is a super-2 number, since 2×4130020111961² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4130020111361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065010055980 + 2065010055981.

It is an arithmetic number, because the mean of its divisors is an integer number (2065010055981).

Almost surely, 2^{4130020111961} is an apocalyptic number.

It is an amenable number.

4130020111961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4130020111961 is an equidigital number, since it uses as much as digits as its factorization.

4130020111961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 4130020111961 in words is "four trillion, one hundred thirty billion, twenty million, one hundred eleven thousand, nine hundred sixty-one".