123211031330 has 16 divisors (see below), whose sum is σ = 223005162744. Its totient is φ = 49012122240.

The previous prime is 123211031309. The next prime is 123211031341. The reversal of 123211031330 is 33130112321.

It can be written as a sum of positive squares in 4 ways, for example, as 39425676481 + 83785354849 = 198559^2 + 289457^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34034387 + ... + 34038006.

Almost surely, 2^123211031330 is an apocalyptic number.

123211031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123211031330 is a deficient number, since it is larger than the sum of its proper divisors (99794131414).

123211031330 is a wasteful number, since it uses less digits than its factorization.

123211031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68072581.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123211031330 its reverse (33130112321), we get a palindrome (156341143651).

The spelling of 123211031330 in words is "one hundred twenty-three billion, two hundred eleven million, thirty-one thousand, three hundred thirty".