1021023123061 has 2 divisors, whose sum is σ = 1021023123062. Its totient is φ = 1021023123060.

The previous prime is 1021023123023. The next prime is 1021023123101. The reversal of 1021023123061 is 1603213201201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590154286225 + 430868836836 = 768215^2 + 656406^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021023123061 - 2³¹ = 1018875639413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021023126061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510511561530 + 510511561531.

It is an arithmetic number, because the mean of its divisors is an integer number (510511561531).

Almost surely, 2^{1021023123061} is an apocalyptic number.

It is an amenable number.

1021023123061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021023123061 is an equidigital number, since it uses as much as digits as its factorization.

1021023123061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1021023123061 its reverse (1603213201201), we get a palindrome (2624236324262).

The spelling of 1021023123061 in words is "one trillion, twenty-one billion, twenty-three million, one hundred twenty-three thousand, sixty-one".