403421120125541 has 4 divisors (see below), whose sum is σ = 461052708714912. Its totient is φ = 345789531536172.

The previous prime is 403421120125523. The next prime is 403421120125601. The reversal of 403421120125541 is 145521021124304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403421120125541 - 2⁶ = 403421120125477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403421120125511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28815794294675 + ... + 28815794294688.

It is an arithmetic number, because the mean of its divisors is an integer number (115263177178728).

Almost surely, 2^{403421120125541} is an apocalyptic number.

It is an amenable number.

403421120125541 is a deficient number, since it is larger than the sum of its proper divisors (57631588589371).

403421120125541 is an equidigital number, since it uses as much as digits as its factorization.

403421120125541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57631588589370.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 403421120125541 its reverse (145521021124304), we get a palindrome (548942141249845).

The spelling of 403421120125541 in words is "four hundred three trillion, four hundred twenty-one billion, one hundred twenty million, one hundred twenty-five thousand, five hundred forty-one".