40041233111021 has 16 divisors (see below), whose sum is σ = 40394152452528. Its totient is φ = 39689237952000.

The previous prime is 40041233111017. The next prime is 40041233111039. The reversal of 40041233111021 is 12011133214004.

It can be written as a sum of positive squares in 8 ways, for example, as 3054766388521 + 36986466722500 = 1747789^2 + 6081650^2 .

It is a cyclic number.

It is not a de Polignac number, because 40041233111021 - 2² = 40041233111017 is a prime.

It is a super-2 number, since 2×40041233111021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40041233111051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244637591 + ... + 244801211.

It is an arithmetic number, because the mean of its divisors is an integer number (2524634528283).

Almost surely, 2^{40041233111021} is an apocalyptic number.

It is an amenable number.

40041233111021 is a deficient number, since it is larger than the sum of its proper divisors (352919341507).

40041233111021 is a wasteful number, since it uses less digits than its factorization.

40041233111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166432.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 40041233111021 its reverse (12011133214004), we get a palindrome (52052366325025).

The spelling of 40041233111021 in words is "forty trillion, forty-one billion, two hundred thirty-three million, one hundred eleven thousand, twenty-one".