1020011211023 has 6 divisors (see below), whose sum is σ = 1186543653696. Its totient is φ = 874295323692.

The previous prime is 1020011210987. The next prime is 1020011211031. The reversal of 1020011211023 is 3201121100201.

It is not a de Polignac number, because 1020011211023 - 2⁸ = 1020011210767 is a prime.

It is a super-2 number, since 2×1020011211023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020011210989 and 1020011211007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020011211073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10408277615 + ... + 10408277712.

It is an arithmetic number, because the mean of its divisors is an integer number (197757275616).

Almost surely, 2^{1020011211023} is an apocalyptic number.

1020011211023 is a deficient number, since it is larger than the sum of its proper divisors (166532442673).

1020011211023 is an equidigital number, since it uses as much as digits as its factorization.

1020011211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20816555341 (or 20816555334 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1020011211023 its reverse (3201121100201), we get a palindrome (4221132311224).

The spelling of 1020011211023 in words is "one trillion, twenty billion, eleven million, two hundred eleven thousand, twenty-three".