10123111311 has 16 divisors (see below), whose sum is σ = 13945311744. Its totient is φ = 6527011104.

The previous prime is 10123111249. The next prime is 10123111357. The reversal of 10123111311 is 11311132101.

It is not a de Polignac number, because 10123111311 - 2⁷ = 10123111183 is a prime.

It is a super-2 number, since 2×10123111311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254515 + ... + 291588.

It is an arithmetic number, because the mean of its divisors is an integer number (871581984).

Almost surely, 2^10123111311 is an apocalyptic number.

10123111311 is a deficient number, since it is larger than the sum of its proper divisors (3822200433).

10123111311 is a wasteful number, since it uses less digits than its factorization.

10123111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546310.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 10123111311 its reverse (11311132101), we get a palindrome (21434243412).

It can be divided in two parts, 10 and 123111311, that added together give a palindrome (123111321).

The spelling of 10123111311 in words is "ten billion, one hundred twenty-three million, one hundred eleven thousand, three hundred eleven".