103031021320122 has 128 divisors (see below), whose sum is σ = 259186476810240. Its totient is φ = 26622534755520.

The previous prime is 103031021320057. The next prime is 103031021320127. The reversal of 103031021320122 is 221023120130301.

It is a super-2 number, since 2×103031021320122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (103031021320127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3651997 + ... + 14812127.

It is an arithmetic number, because the mean of its divisors is an integer number (2024894350080).

Almost surely, 2^{103031021320122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103031021320122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129593238405120).

103031021320122 is an abundant number, since it is smaller than the sum of its proper divisors (156155455490118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103031021320122 is a wasteful number, since it uses less digits than its factorization.

103031021320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11160688.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 103031021320122 its reverse (221023120130301), we get a palindrome (324054141450423).

The spelling of 103031021320122 in words is "one hundred three trillion, thirty-one billion, twenty-one million, three hundred twenty thousand, one hundred twenty-two".