103121100231111 has 48 divisors (see below), whose sum is σ = 153831071791488. Its totient is φ = 66516591398400.

The previous prime is 103121100231103. The next prime is 103121100231139. The reversal of 103121100231111 is 111132001121301.

103121100231111 is a `hidden beast` number, since 1 + 0 + 312 + 1 + 10 + 0 + 231 + 111 = 666.

It is not a de Polignac number, because 103121100231111 - 2³ = 103121100231103 is a prime.

It is a super-2 number, since 2×103121100231111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121100231151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2476054290 + ... + 2476095936.

It is an arithmetic number, because the mean of its divisors is an integer number (3204813995656).

Almost surely, 2^{103121100231111} is an apocalyptic number.

103121100231111 is a deficient number, since it is larger than the sum of its proper divisors (50709971560377).

103121100231111 is a wasteful number, since it uses less digits than its factorization.

103121100231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82952 (or 82949 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 103121100231111 its reverse (111132001121301), we get a palindrome (214253101352412).

The spelling of 103121100231111 in words is "one hundred three trillion, one hundred twenty-one billion, one hundred million, two hundred thirty-one thousand, one hundred eleven".