1023123211 has 8 divisors (see below), whose sum is σ = 1122588144. Its totient is φ = 924733920.

The previous prime is 1023123197. The next prime is 1023123217. The reversal of 1023123211 is 1123213201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1023123211 - 2⁷ = 1023123083 is a prime.

It is a super-2 number, since 2×1023123211² = 2093562209773901042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023123217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266916 + ... + 270721.

It is an arithmetic number, because the mean of its divisors is an integer number (140323518).

Almost surely, 2^1023123211 is an apocalyptic number.

1023123211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1023123211 is a deficient number, since it is larger than the sum of its proper divisors (99464933).

1023123211 is a wasteful number, since it uses less digits than its factorization.

1023123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537821.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1023123211 is about 31986.2972380362. The cubic root of 1023123211 is about 1007.6490794057.

Adding to 1023123211 its reverse (1123213201), we get a palindrome (2146336412).

The spelling of 1023123211 in words is "one billion, twenty-three million, one hundred twenty-three thousand, two hundred eleven".