61030385123 has 2 divisors, whose sum is σ = 61030385124. Its totient is φ = 61030385122.

The previous prime is 61030385077. The next prime is 61030385149. The reversal of 61030385123 is 32158303016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61030385123 - 2²⁸ = 60761949667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61030385123.

It is not a weakly prime, because it can be changed into another prime (61030385173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30515192561 + 30515192562.

It is an arithmetic number, because the mean of its divisors is an integer number (30515192562).

Almost surely, 2^61030385123 is an apocalyptic number.

61030385123 is a deficient number, since it is larger than the sum of its proper divisors (1).

61030385123 is an equidigital number, since it uses as much as digits as its factorization.

61030385123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 61030385123 its reverse (32158303016), we get a palindrome (93188688139).

The spelling of 61030385123 in words is "sixty-one billion, thirty million, three hundred eighty-five thousand, one hundred twenty-three".