121001431042 has 8 divisors (see below), whose sum is σ = 181512164556. Its totient is φ = 60497376192.

The previous prime is 121001431027. The next prime is 121001431091. The reversal of 121001431042 is 240134100121.

It can be written as a sum of positive squares in 2 ways, for example, as 99136189881 + 21865241161 = 314859^2 + 147869^2 .

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

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, 1624123 + ... + 1696990.

Almost surely, 2^121001431042 is an apocalyptic number.

121001431042 is a deficient number, since it is larger than the sum of its proper divisors (60510733514).

121001431042 is a wasteful number, since it uses less digits than its factorization.

121001431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339332.

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

Adding to 121001431042 its reverse (240134100121), we get a palindrome (361135531163).

The spelling of 121001431042 in words is "one hundred twenty-one billion, one million, four hundred thirty-one thousand, forty-two".