247231667371061 has 2 divisors, whose sum is σ = 247231667371062. Its totient is φ = 247231667371060.

The previous prime is 247231667370977. The next prime is 247231667371079. The reversal of 247231667371061 is 160173766132742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208069979486161 + 39161687884900 = 14424631^2 + 6257930^2 .

It is a cyclic number.

It is not a de Polignac number, because 247231667371061 - 2³⁰ = 247230593629237 is a prime.

It is a super-2 number, since 2×247231667371061² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247231667370988 and 247231667371006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247231667376061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123615833685530 + 123615833685531.

It is an arithmetic number, because the mean of its divisors is an integer number (123615833685531).

Almost surely, 2^{247231667371061} is an apocalyptic number.

It is an amenable number.

247231667371061 is a deficient number, since it is larger than the sum of its proper divisors (1).

247231667371061 is an equidigital number, since it uses as much as digits as its factorization.

247231667371061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 247231667371061 in words is "two hundred forty-seven trillion, two hundred thirty-one billion, six hundred sixty-seven million, three hundred seventy-one thousand, sixty-one".