1011200210123 has 4 divisors (see below), whose sum is σ = 1011202811808. Its totient is φ = 1011197608440.

The previous prime is 1011200210077. The next prime is 1011200210159. The reversal of 1011200210123 is 3210120021101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011200210123 - 2¹⁰ = 1011200209099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011200210098 and 1011200210107.

It is not an unprimeable number, because it can be changed into a prime (1011200270123) 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, 587411 + ... + 1538652.

It is an arithmetic number, because the mean of its divisors is an integer number (252800702952).

Almost surely, 2^{1011200210123} is an apocalyptic number.

1011200210123 is a deficient number, since it is larger than the sum of its proper divisors (2601685).

1011200210123 is an equidigital number, since it uses as much as digits as its factorization.

1011200210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601684.

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

Adding to 1011200210123 its reverse (3210120021101), we get a palindrome (4221320231224).

The spelling of 1011200210123 in words is "one trillion, eleven billion, two hundred million, two hundred ten thousand, one hundred twenty-three".