103121122011 has 16 divisors (see below), whose sum is σ = 142244320800. Its totient is φ = 66372945408.

The previous prime is 103121122009. The next prime is 103121122021. The reversal of 103121122011 is 110221121301.

It is not a de Polignac number, because 103121122011 - 2¹ = 103121122009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103121122021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2741745 + ... + 2779101.

It is an arithmetic number, because the mean of its divisors is an integer number (8890270050).

Almost surely, 2^103121122011 is an apocalyptic number.

103121122011 is a deficient number, since it is larger than the sum of its proper divisors (39123198789).

103121122011 is a wasteful number, since it uses less digits than its factorization.

103121122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69118.

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

Adding to 103121122011 its reverse (110221121301), we get a palindrome (213342243312).

The spelling of 103121122011 in words is "one hundred three billion, one hundred twenty-one million, one hundred twenty-two thousand, eleven".