1420550031531 has 8 divisors (see below), whose sum is σ = 1894258630144. Its totient is φ = 946937393640.

The previous prime is 1420550031517. The next prime is 1420550031569. The reversal of 1420550031531 is 1351300550241.

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

It is a de Polignac number, because none of the positive numbers 2^k-1420550031531 is a prime.

It is a super-2 number, since 2×1420550031531² (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 (1420550031581) 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, 23955631 + ... + 24014856.

It is an arithmetic number, because the mean of its divisors is an integer number (236782328768).

Almost surely, 2^{1420550031531} is an apocalyptic number.

1420550031531 is a deficient number, since it is larger than the sum of its proper divisors (473708598613).

1420550031531 is an equidigital number, since it uses as much as digits as its factorization.

1420550031531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47980361.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1420550031531 its reverse (1351300550241), we get a palindrome (2771850581772).

The spelling of 1420550031531 in words is "one trillion, four hundred twenty billion, five hundred fifty million, thirty-one thousand, five hundred thirty-one".