10400121403 has 8 divisors (see below), whose sum is σ = 11890118880. Its totient is φ = 8911190400.

The previous prime is 10400121401. The next prime is 10400121437. The reversal of 10400121403 is 30412100401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10400121403 - 2¹ = 10400121401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10400121401) 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, 245608 + ... + 284821.

It is an arithmetic number, because the mean of its divisors is an integer number (1486264860).

Almost surely, 2^10400121403 is an apocalyptic number.

10400121403 is a deficient number, since it is larger than the sum of its proper divisors (1489997477).

10400121403 is an equidigital number, since it uses as much as digits as its factorization.

10400121403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533237.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10400121403 its reverse (30412100401), we get a palindrome (40812221804).

The spelling of 10400121403 in words is "ten billion, four hundred million, one hundred twenty-one thousand, four hundred three".