40221020123131 has 4 divisors (see below), whose sum is σ = 40283185533552. Its totient is φ = 40158854712712.

The previous prime is 40221020123021. The next prime is 40221020123177. The reversal of 40221020123131 is 13132102012204.

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 40221020123131 - 2¹⁷ = 40221019992059 is a prime.

It is a super-2 number, since 2×40221020123131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40221020123231) 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, 31082704240 + ... + 31082705533.

It is an arithmetic number, because the mean of its divisors is an integer number (10070796383388).

Almost surely, 2^{40221020123131} is an apocalyptic number.

40221020123131 is a deficient number, since it is larger than the sum of its proper divisors (62165410421).

40221020123131 is an equidigital number, since it uses as much as digits as its factorization.

40221020123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62165410420.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 40221020123131 its reverse (13132102012204), we get a palindrome (53353122135335).

The spelling of 40221020123131 in words is "forty trillion, two hundred twenty-one billion, twenty million, one hundred twenty-three thousand, one hundred thirty-one".