10211202011123 has 4 divisors (see below), whose sum is σ = 10211208454560. Its totient is φ = 10211195567688.

The previous prime is 10211202011107. The next prime is 10211202011167. The reversal of 10211202011123 is 32111020211201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10211202011123 - 2⁴ = 10211202011107 is a prime.

It is a super-2 number, since 2×10211202011123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10211202011183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995558 + ... + 4627476.

It is an arithmetic number, because the mean of its divisors is an integer number (2552802113640).

Almost surely, 2^{10211202011123} is an apocalyptic number.

10211202011123 is a deficient number, since it is larger than the sum of its proper divisors (6443437).

10211202011123 is an equidigital number, since it uses as much as digits as its factorization.

10211202011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6443436.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10211202011123 its reverse (32111020211201), we get a palindrome (42322222222324).

The spelling of 10211202011123 in words is "ten trillion, two hundred eleven billion, two hundred two million, eleven thousand, one hundred twenty-three".