1420031123 has 12 divisors (see below), whose sum is σ = 1652604192. Its totient is φ = 1216630800.

The previous prime is 1420031087. The next prime is 1420031149. The reversal of 1420031123 is 3211300241.

It is a de Polignac number, because none of the positive numbers 2^k-1420031123 is a prime.

It is a super-2 number, since 2×1420031123² = 4032976780577282258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420031153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138473 + ... + 148373.

It is an arithmetic number, because the mean of its divisors is an integer number (137717016).

Almost surely, 2^1420031123 is an apocalyptic number.

1420031123 is a deficient number, since it is larger than the sum of its proper divisors (232573069).

1420031123 is an equidigital number, since it uses as much as digits as its factorization.

1420031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842 (or 12835 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1420031123 is about 37683.3003199030. The cubic root of 1420031123 is about 1123.9990762837. Note that the first 3 decimals are identical.

Adding to 1420031123 its reverse (3211300241), we get a palindrome (4631331364).

The spelling of 1420031123 in words is "one billion, four hundred twenty million, thirty-one thousand, one hundred twenty-three".