1242131401 has 8 divisors (see below), whose sum is σ = 1503083520. Its totient is φ = 1002055488.

The previous prime is 1242131377. The next prime is 1242131417. The reversal of 1242131401 is 1041312421.

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

It is not a de Polignac number, because 1242131401 - 2¹⁵ = 1242098633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242131801) 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, 5218921 + ... + 5219158.

It is an arithmetic number, because the mean of its divisors is an integer number (187885440).

Almost surely, 2^1242131401 is an apocalyptic number.

It is an amenable number.

1242131401 is a deficient number, since it is larger than the sum of its proper divisors (260952119).

1242131401 is a wasteful number, since it uses less digits than its factorization.

1242131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438103.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1242131401 is about 35243.8845900959. The cubic root of 1242131401 is about 1074.9522678644.

Adding to 1242131401 its reverse (1041312421), we get a palindrome (2283443822).

The spelling of 1242131401 in words is "one billion, two hundred forty-two million, one hundred thirty-one thousand, four hundred one".