123212122030 has 16 divisors (see below), whose sum is σ = 222340471200. Its totient is φ = 49160704032.

The previous prime is 123212121979. The next prime is 123212122031. The reversal of 123212122030 is 30221212321.

It is a super-2 number, since 2×123212122030² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123212121989 and 123212122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212122031) 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, 15513930 + ... + 15521869.

It is an arithmetic number, because the mean of its divisors is an integer number (13896279450).

Almost surely, 2^123212122030 is an apocalyptic number.

123212122030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123212122030 is a deficient number, since it is larger than the sum of its proper divisors (99128349170).

123212122030 is a wasteful number, since it uses less digits than its factorization.

123212122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31036203.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123212122030 its reverse (30221212321), we get a palindrome (153433334351).

The spelling of 123212122030 in words is "one hundred twenty-three billion, two hundred twelve million, one hundred twenty-two thousand, thirty".