400031041003 has 4 divisors (see below), whose sum is σ = 436397499288. Its totient is φ = 363664582720.

The previous prime is 400031040973. The next prime is 400031041013. The reversal of 400031041003 is 300140130004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400031041003 - 2⁵ = 400031040971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400031041013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18183229126 + ... + 18183229147.

It is an arithmetic number, because the mean of its divisors is an integer number (109099374822).

Almost surely, 2^400031041003 is an apocalyptic number.

400031041003 is a deficient number, since it is larger than the sum of its proper divisors (36366458285).

400031041003 is a wasteful number, since it uses less digits than its factorization.

400031041003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36366458284.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 400031041003 its reverse (300140130004), we get a palindrome (700171171007).

The spelling of 400031041003 in words is "four hundred billion, thirty-one million, forty-one thousand, three".