1010211123 has 4 divisors (see below), whose sum is σ = 1346948168. Its totient is φ = 673474080.

The previous prime is 1010211121. The next prime is 1010211203. The reversal of 1010211123 is 3211120101.

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

It is not a de Polignac number, because 1010211123 - 2¹ = 1010211121 is a prime.

It is a super-2 number, since 2×1010211123² = 2041053026065842258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010211099 and 1010211108.

It is not an unprimeable number, because it can be changed into a prime (1010211121) 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, 168368518 + ... + 168368523.

It is an arithmetic number, because the mean of its divisors is an integer number (336737042).

Almost surely, 2^1010211123 is an apocalyptic number.

1010211123 is a deficient number, since it is larger than the sum of its proper divisors (336737045).

1010211123 is an equidigital number, since it uses as much as digits as its factorization.

1010211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336737044.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1010211123 is about 31783.8185717198. The cubic root of 1010211123 is about 1003.3921877179.

Adding to 1010211123 its reverse (3211120101), we get a palindrome (4221331224).

The spelling of 1010211123 in words is "one billion, ten million, two hundred eleven thousand, one hundred twenty-three".