401250345123021 has 8 divisors (see below), whose sum is σ = 535000954950144. Its totient is φ = 267499982688960.

The previous prime is 401250345122999. The next prime is 401250345123041. The reversal of 401250345123021 is 120321543052104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401250345123021 - 2⁴² = 396852298611917 is a prime.

It is a super-2 number, since 2×401250345123021² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401250345123041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58030125 + ... + 64575506.

It is an arithmetic number, because the mean of its divisors is an integer number (66875119368768).

Almost surely, 2^{401250345123021} is an apocalyptic number.

It is an amenable number.

401250345123021 is a deficient number, since it is larger than the sum of its proper divisors (133750609827123).

401250345123021 is a wasteful number, since it uses less digits than its factorization.

401250345123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123696531.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 401250345123021 its reverse (120321543052104), we get a palindrome (521571888175125).

The spelling of 401250345123021 in words is "four hundred one trillion, two hundred fifty billion, three hundred forty-five million, one hundred twenty-three thousand, twenty-one".