400030144131031 has 4 divisors (see below), whose sum is σ = 400179912064864. Its totient is φ = 399880376197200.

The previous prime is 400030144130999. The next prime is 400030144131067. The reversal of 400030144131031 is 130131441030004.

It is a happy number.

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 400030144131031 - 2⁵ = 400030144130999 is a prime.

It is a super-2 number, since 2×400030144131031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400030144130987 and 400030144131005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400030144131071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74883962910 + ... + 74883968251.

It is an arithmetic number, because the mean of its divisors is an integer number (100044978016216).

Almost surely, 2^{400030144131031} is an apocalyptic number.

400030144131031 is a deficient number, since it is larger than the sum of its proper divisors (149767933833).

400030144131031 is a wasteful number, since it uses less digits than its factorization.

400030144131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149767933832.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 400030144131031 its reverse (130131441030004), we get a palindrome (530161585161035).

The spelling of 400030144131031 in words is "four hundred trillion, thirty billion, one hundred forty-four million, one hundred thirty-one thousand, thirty-one".