1101203031123 has 24 divisors (see below), whose sum is σ = 1766558453040. Its totient is φ = 677663400960.

The previous prime is 1101203031083. The next prime is 1101203031133. The reversal of 1101203031123 is 3211303021011.

It is not a de Polignac number, because 1101203031123 - 2¹² = 1101203027027 is a prime.

It is a super-2 number, since 2×1101203031123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101203031096 and 1101203031105.

It is not an unprimeable number, because it can be changed into a prime (1101203031133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120661998 + ... + 120671123.

It is an arithmetic number, because the mean of its divisors is an integer number (73606602210).

Almost surely, 2^{1101203031123} is an apocalyptic number.

1101203031123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1101203031123 is a deficient number, since it is larger than the sum of its proper divisors (665355421917).

1101203031123 is a wasteful number, since it uses less digits than its factorization.

1101203031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241333156 (or 241333137 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1101203031123 its reverse (3211303021011), we get a palindrome (4312506052134).

The spelling of 1101203031123 in words is "one trillion, one hundred one billion, two hundred three million, thirty-one thousand, one hundred twenty-three".