1012121587739 has 2 divisors, whose sum is σ = 1012121587740. Its totient is φ = 1012121587738.

The previous prime is 1012121587723. The next prime is 1012121587747. The reversal of 1012121587739 is 9377851212101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012121587739 - 2⁴ = 1012121587723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012121587693 and 1012121587702.

It is not a weakly prime, because it can be changed into another prime (1012121581739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060793869 + 506060793870.

It is an arithmetic number, because the mean of its divisors is an integer number (506060793870).

Almost surely, 2^{1012121587739} is an apocalyptic number.

1012121587739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012121587739 is an equidigital number, since it uses as much as digits as its factorization.

1012121587739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 47.

The spelling of 1012121587739 in words is "one trillion, twelve billion, one hundred twenty-one million, five hundred eighty-seven thousand, seven hundred thirty-nine".