1020012091829 has 2 divisors, whose sum is σ = 1020012091830. Its totient is φ = 1020012091828.

The previous prime is 1020012091807. The next prime is 1020012091871. The reversal of 1020012091829 is 9281902100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888824700625 + 131187391204 = 942775^2 + 362198^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020012091829 - 2³⁶ = 951292615093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020012091429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510006045914 + 510006045915.

It is an arithmetic number, because the mean of its divisors is an integer number (510006045915).

Almost surely, 2^{1020012091829} is an apocalyptic number.

It is an amenable number.

1020012091829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020012091829 is an equidigital number, since it uses as much as digits as its factorization.

1020012091829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 1020012091829 in words is "one trillion, twenty billion, twelve million, ninety-one thousand, eight hundred twenty-nine".