123031332211 has 8 divisors (see below), whose sum is σ = 129242138400. Its totient is φ = 116892327552.

The previous prime is 123031332157. The next prime is 123031332251. The reversal of 123031332211 is 112233130321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123031332211 is a prime.

It is a super-2 number, since 2×123031332211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031332251) 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, 17946870 + ... + 17953723.

It is an arithmetic number, because the mean of its divisors is an integer number (16155267300).

Almost surely, 2^123031332211 is an apocalyptic number.

123031332211 is a deficient number, since it is larger than the sum of its proper divisors (6210806189).

123031332211 is a wasteful number, since it uses less digits than its factorization.

123031332211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35900765.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123031332211 its reverse (112233130321), we get a palindrome (235264462532).

The spelling of 123031332211 in words is "one hundred twenty-three billion, thirty-one million, three hundred thirty-two thousand, two hundred eleven".