40034067400121 has 2 divisors, whose sum is σ = 40034067400122. Its totient is φ = 40034067400120.

The previous prime is 40034067400037. The next prime is 40034067400157. The reversal of 40034067400121 is 12100476043004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24372102849721 + 15661964550400 = 4936811^2 + 3957520^2 .

It is a cyclic number.

It is not a de Polignac number, because 40034067400121 - 2¹⁰ = 40034067399097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40034067430121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20017033700060 + 20017033700061.

It is an arithmetic number, because the mean of its divisors is an integer number (20017033700061).

Almost surely, 2^{40034067400121} is an apocalyptic number.

It is an amenable number.

40034067400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40034067400121 is an equidigital number, since it uses as much as digits as its factorization.

40034067400121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 40034067400121 in words is "forty trillion, thirty-four billion, sixty-seven million, four hundred thousand, one hundred twenty-one".