40421213031 has 8 divisors (see below), whose sum is σ = 54633238000. Its totient is φ = 26578331712.

The previous prime is 40421213017. The next prime is 40421213047. The reversal of 40421213031 is 13031212404.

40421213031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40421213031 - 2⁶ = 40421212967 is a prime.

It is a super-2 number, since 2×40421213031² (a number of 22 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 = 40421212989 and 40421213007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421213011) 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, 92285656 + ... + 92286093.

It is an arithmetic number, because the mean of its divisors is an integer number (6829154750).

Almost surely, 2^40421213031 is an apocalyptic number.

40421213031 is a deficient number, since it is larger than the sum of its proper divisors (14212024969).

40421213031 is a wasteful number, since it uses less digits than its factorization.

40421213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184571825.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40421213031 its reverse (13031212404), we get a palindrome (53452425435).

The spelling of 40421213031 in words is "forty billion, four hundred twenty-one million, two hundred thirteen thousand, thirty-one".