101021230985929 has 2 divisors, whose sum is σ = 101021230985930. Its totient is φ = 101021230985928.

The previous prime is 101021230985869. The next prime is 101021230985959. The reversal of 101021230985929 is 929589032120101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79475852095929 + 21545378890000 = 8914923^2 + 4641700^2 .

It is an emirp because it is prime and its reverse (929589032120101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101021230985929 - 2²¹ = 101021228888777 is a prime.

It is not a weakly prime, because it can be changed into another prime (101021230985959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510615492964 + 50510615492965.

It is an arithmetic number, because the mean of its divisors is an integer number (50510615492965).

Almost surely, 2^{101021230985929} is an apocalyptic number.

It is an amenable number.

101021230985929 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021230985929 is an equidigital number, since it uses as much as digits as its factorization.

101021230985929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 101021230985929 in words is "one hundred one trillion, twenty-one billion, two hundred thirty million, nine hundred eighty-five thousand, nine hundred twenty-nine".