10123881049 has 2 divisors, whose sum is σ = 10123881050. Its totient is φ = 10123881048.

The previous prime is 10123881013. The next prime is 10123881107. The reversal of 10123881049 is 94018832101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7095029824 + 3028851225 = 84232^2 + 55035^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123881049 - 2¹¹ = 10123879001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10123880999 and 10123881017.

It is not a weakly prime, because it can be changed into another prime (10123881149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061940524 + 5061940525.

It is an arithmetic number, because the mean of its divisors is an integer number (5061940525).

Almost surely, 2^10123881049 is an apocalyptic number.

It is an amenable number.

10123881049 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123881049 is an equidigital number, since it uses as much as digits as its factorization.

10123881049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 10123881049 in words is "ten billion, one hundred twenty-three million, eight hundred eighty-one thousand, forty-nine".