40100004021029 has 2 divisors, whose sum is σ = 40100004021030. Its totient is φ = 40100004021028.

The previous prime is 40100004021013. The next prime is 40100004021053. The reversal of 40100004021029 is 92012040000104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32820810813025 + 7279193208004 = 5728945^2 + 2697998^2 .

It is a cyclic number.

It is not a de Polignac number, because 40100004021029 - 2⁴ = 40100004021013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40100004020995 and 40100004021013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40100004021829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050002010514 + 20050002010515.

It is an arithmetic number, because the mean of its divisors is an integer number (20050002010515).

Almost surely, 2^{40100004021029} is an apocalyptic number.

It is an amenable number.

40100004021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

40100004021029 is an equidigital number, since it uses as much as digits as its factorization.

40100004021029 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 40100004021029 in words is "forty trillion, one hundred billion, four million, twenty-one thousand, twenty-nine".