103121400444 has 24 divisors (see below), whose sum is σ = 254770519248. Its totient is φ = 32351811840.

The previous prime is 103121400443. The next prime is 103121400493. The reversal of 103121400444 is 444004121301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121400443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252748327 + ... + 252748734.

It is an arithmetic number, because the mean of its divisors is an integer number (10615438302).

Almost surely, 2^103121400444 is an apocalyptic number.

It is an amenable number.

103121400444 is an abundant number, since it is smaller than the sum of its proper divisors (151649118804).

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

103121400444 is a wasteful number, since it uses less digits than its factorization.

103121400444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505497085 (or 505497083 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 103121400444 its reverse (444004121301), we get a palindrome (547125521745).

The spelling of 103121400444 in words is "one hundred three billion, one hundred twenty-one million, four hundred thousand, four hundred forty-four".