1420228409731 has 4 divisors (see below), whose sum is σ = 1469201803200. Its totient is φ = 1371255016264.

The previous prime is 1420228409671. The next prime is 1420228409737. The reversal of 1420228409731 is 1379048220241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420228409731 - 2⁷ = 1420228409603 is a prime.

It is a super-2 number, since 2×1420228409731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420228409737) 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, 24486696691 + ... + 24486696748.

It is an arithmetic number, because the mean of its divisors is an integer number (367300450800).

Almost surely, 2^{1420228409731} is an apocalyptic number.

1420228409731 is a deficient number, since it is larger than the sum of its proper divisors (48973393469).

1420228409731 is an equidigital number, since it uses as much as digits as its factorization.

1420228409731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48973393468.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 1420228409731 in words is "one trillion, four hundred twenty billion, two hundred twenty-eight million, four hundred nine thousand, seven hundred thirty-one".