40121253250355 has 4 divisors (see below), whose sum is σ = 48145503900432. Its totient is φ = 32097002600280.

The previous prime is 40121253250343. The next prime is 40121253250363. The reversal of 40121253250355 is 55305235212104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40121253250355 - 2³⁶ = 40052533773619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012125325031 + ... + 4012125325040.

It is an arithmetic number, because the mean of its divisors is an integer number (12036375975108).

Almost surely, 2^{40121253250355} is an apocalyptic number.

40121253250355 is a deficient number, since it is larger than the sum of its proper divisors (8024250650077).

40121253250355 is an equidigital number, since it uses as much as digits as its factorization.

40121253250355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024250650076.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 40121253250355 its reverse (55305235212104), we get a palindrome (95426488462459).

The spelling of 40121253250355 in words is "forty trillion, one hundred twenty-one billion, two hundred fifty-three million, two hundred fifty thousand, three hundred fifty-five".