10215111023 has 4 divisors (see below), whose sum is σ = 11000888808. Its totient is φ = 9429333240.

The previous prime is 10215111017. The next prime is 10215111029. The reversal of 10215111023 is 32011151201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32011151201 = 27827 ⋅1150363.

It is an interprime number because it is at equal distance from previous prime (10215111017) and next prime (10215111029).

It is a cyclic number.

It is not a de Polignac number, because 10215111023 - 2⁶ = 10215110959 is a prime.

It is a super-2 number, since 2×10215111023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10215110992 and 10215111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392888873 + ... + 392888898.

It is an arithmetic number, because the mean of its divisors is an integer number (2750222202).

Almost surely, 2^10215111023 is an apocalyptic number.

10215111023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10215111023 is a deficient number, since it is larger than the sum of its proper divisors (785777785).

10215111023 is an equidigital number, since it uses as much as digits as its factorization.

10215111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785777784.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 10215111023 its reverse (32011151201), we get a palindrome (42226262224).

The spelling of 10215111023 in words is "ten billion, two hundred fifteen million, one hundred eleven thousand, twenty-three".