743121633401 has 16 divisors (see below), whose sum is σ = 869225201664. Its totient is φ = 622062446544.

The previous prime is 743121633389. The next prime is 743121633439. The reversal of 743121633401 is 104336121347.

It is not a de Polignac number, because 743121633401 - 2¹⁰ = 743121632377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743121633701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2286905 + ... + 2591558.

It is an arithmetic number, because the mean of its divisors is an integer number (54326575104).

Almost surely, 2^743121633401 is an apocalyptic number.

It is an amenable number.

743121633401 is a deficient number, since it is larger than the sum of its proper divisors (126103568263).

743121633401 is a wasteful number, since it uses less digits than its factorization.

743121633401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878980.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 743121633401 its reverse (104336121347), we get a palindrome (847457754748).

The spelling of 743121633401 in words is "seven hundred forty-three billion, one hundred twenty-one million, six hundred thirty-three thousand, four hundred one".