123211030 has 16 divisors (see below), whose sum is σ = 222021504. Its totient is φ = 49230720.

The previous prime is 123211021. The next prime is 123211031. The reversal of 123211030 is 30112321.

It is a self number, because there is not a number n which added to its sum of digits gives 123211030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123211031) 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, 3694 + ... + 16126.

It is an arithmetic number, because the mean of its divisors is an integer number (13876344).

Almost surely, 2^123211030 is an apocalyptic number.

123211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123211030 is a deficient number, since it is larger than the sum of its proper divisors (98810474).

123211030 is a wasteful number, since it uses less digits than its factorization.

123211030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13431.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123211030 is about 11100.0463962994. The cubic root of 123211030 is about 497.6032360695.

Adding to 123211030 its reverse (30112321), we get a palindrome (153323351).

The spelling of 123211030 in words is "one hundred twenty-three million, two hundred eleven thousand, thirty".