210123111121132 has 24 divisors (see below), whose sum is σ = 401197444224192. Its totient is φ = 95497809104400.

The previous prime is 210123111121097. The next prime is 210123111121139. The reversal of 210123111121132 is 231121111321012.

It is a super-2 number, since 2×210123111121132² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (210123111121139) 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, 317063994 + ... + 317726017.

It is an arithmetic number, because the mean of its divisors is an integer number (16716560176008).

Almost surely, 2^{210123111121132} is an apocalyptic number.

210123111121132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210123111121132 is a deficient number, since it is larger than the sum of its proper divisors (191074333103060).

210123111121132 is a wasteful number, since it uses less digits than its factorization.

210123111121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634797549 (or 634797547 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 210123111121132 its reverse (231121111321012), we get a palindrome (441244222442144).

The spelling of 210123111121132 in words is "two hundred ten trillion, one hundred twenty-three billion, one hundred eleven million, one hundred twenty-one thousand, one hundred thirty-two".