1231442054 has 4 divisors (see below), whose sum is σ = 1847163084. Its totient is φ = 615721026.

The previous prime is 1231442027. The next prime is 1231442071. The reversal of 1231442054 is 4502441321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307860512 + ... + 307860515.

It is an arithmetic number, because the mean of its divisors is an integer number (461790771).

Almost surely, 2^1231442054 is an apocalyptic number.

1231442054 is a deficient number, since it is larger than the sum of its proper divisors (615721030).

1231442054 is an equidigital number, since it uses as much as digits as its factorization.

1231442054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615721029.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1231442054 is about 35091.9086685236. The cubic root of 1231442054 is about 1071.8598259903.

Adding to 1231442054 its reverse (4502441321), we get a palindrome (5733883375).

The spelling of 1231442054 in words is "one billion, two hundred thirty-one million, four hundred forty-two thousand, fifty-four".