1020101120923 has 2 divisors, whose sum is σ = 1020101120924. Its totient is φ = 1020101120922.

The previous prime is 1020101120917. The next prime is 1020101120993. The reversal of 1020101120923 is 3290211010201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020101120923 - 2²¹ = 1020099023771 is a prime.

It is a super-2 number, since 2×1020101120923² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020101120894 and 1020101120903.

It is not a weakly prime, because it can be changed into another prime (1020101120903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510050560461 + 510050560462.

It is an arithmetic number, because the mean of its divisors is an integer number (510050560462).

Almost surely, 2^{1020101120923} is an apocalyptic number.

1020101120923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020101120923 is an equidigital number, since it uses as much as digits as its factorization.

1020101120923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1020101120923 in words is "one trillion, twenty billion, one hundred one million, one hundred twenty thousand, nine hundred twenty-three".