1210142423 has 4 divisors (see below), whose sum is σ = 1383019920. Its totient is φ = 1037264928.

The previous prime is 1210142413. The next prime is 1210142441. The reversal of 1210142423 is 3242410121.

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

It is not a de Polignac number, because 1210142423 - 2¹² = 1210138327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210142395 and 1210142404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210142413) 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, 86438738 + ... + 86438751.

It is an arithmetic number, because the mean of its divisors is an integer number (345754980).

Almost surely, 2^1210142423 is an apocalyptic number.

1210142423 is a deficient number, since it is larger than the sum of its proper divisors (172877497).

1210142423 is an equidigital number, since it uses as much as digits as its factorization.

1210142423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172877496.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1210142423 is about 34787.1013883020. The cubic root of 1210142423 is about 1065.6440440154.

Adding to 1210142423 its reverse (3242410121), we get a palindrome (4452552544).

The spelling of 1210142423 in words is "one billion, two hundred ten million, one hundred forty-two thousand, four hundred twenty-three".