31420426801 has 4 divisors (see below), whose sum is σ = 31422318400. Its totient is φ = 31418535204.

The previous prime is 31420426789. The next prime is 31420426811. The reversal of 31420426801 is 10862402413.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10862402413 = 181 ⋅60013273.

It is a cyclic number.

It is not a de Polignac number, because 31420426801 - 2¹³ = 31420418609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31420426811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920661 + ... + 954178.

It is an arithmetic number, because the mean of its divisors is an integer number (7855579600).

Almost surely, 2^31420426801 is an apocalyptic number.

It is an amenable number.

31420426801 is a deficient number, since it is larger than the sum of its proper divisors (1891599).

31420426801 is a wasteful number, since it uses less digits than its factorization.

31420426801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891598.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 31420426801 in words is "thirty-one billion, four hundred twenty million, four hundred twenty-six thousand, eight hundred one".