1242341431220 has 12 divisors (see below), whose sum is σ = 2608917005604. Its totient is φ = 496936572480.

The previous prime is 1242341431187. The next prime is 1242341431267. The reversal of 1242341431220 is 221341432421.

It can be written as a sum of positive squares in 2 ways, for example, as 322253770276 + 920087660944 = 567674^2 + 959212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31058535761 + ... + 31058535800.

It is an arithmetic number, because the mean of its divisors is an integer number (217409750467).

Almost surely, 2^{1242341431220} is an apocalyptic number.

1242341431220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242341431220 is an abundant number, since it is smaller than the sum of its proper divisors (1366575574384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242341431220 is a wasteful number, since it uses less digits than its factorization.

1242341431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62117071570 (or 62117071568 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1242341431220 its reverse (221341432421), we get a palindrome (1463682863641).

The spelling of 1242341431220 in words is "one trillion, two hundred forty-two billion, three hundred forty-one million, four hundred thirty-one thousand, two hundred twenty".