143123613306061 has 2 divisors, whose sum is σ = 143123613306062. Its totient is φ = 143123613306060.

The previous prime is 143123613305951. The next prime is 143123613306067. The reversal of 143123613306061 is 160603316321341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90315923033961 + 52807690272100 = 9503469^2 + 7266890^2 .

It is a cyclic number.

It is not a de Polignac number, because 143123613306061 - 2¹¹ = 143123613304013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143123613306067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71561806653030 + 71561806653031.

It is an arithmetic number, because the mean of its divisors is an integer number (71561806653031).

Almost surely, 2^{143123613306061} is an apocalyptic number.

It is an amenable number.

143123613306061 is a deficient number, since it is larger than the sum of its proper divisors (1).

143123613306061 is an equidigital number, since it uses as much as digits as its factorization.

143123613306061 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 40.

The spelling of 143123613306061 in words is "one hundred forty-three trillion, one hundred twenty-three billion, six hundred thirteen million, three hundred six thousand, sixty-one".