1210123102011 has 32 divisors (see below), whose sum is σ = 1717834029120. Its totient is φ = 755107454976.

The previous prime is 1210123101997. The next prime is 1210123102057. The reversal of 1210123102011 is 1102013210121.

It is not a de Polignac number, because 1210123102011 - 2¹¹ = 1210123099963 is a prime.

It is a super-2 number, since 2×1210123102011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210123104011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23977075 + ... + 24027491.

It is an arithmetic number, because the mean of its divisors is an integer number (53682313410).

Almost surely, 2^{1210123102011} is an apocalyptic number.

1210123102011 is a deficient number, since it is larger than the sum of its proper divisors (507710927109).

1210123102011 is a wasteful number, since it uses less digits than its factorization.

1210123102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53023.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1210123102011 its reverse (1102013210121), we get a palindrome (2312136312132).

The spelling of 1210123102011 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one hundred two thousand, eleven".