121042431002 has 8 divisors (see below), whose sum is σ = 181578353076. Its totient is φ = 60516313312.

The previous prime is 121042431001. The next prime is 121042431067. The reversal of 121042431002 is 200134240121.

It can be written as a sum of positive squares in 2 ways, for example, as 112078317961 + 8964113041 = 334781^2 + 94679^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121042431001) 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, 2420153 + ... + 2469660.

Almost surely, 2^121042431002 is an apocalyptic number.

121042431002 is a deficient number, since it is larger than the sum of its proper divisors (60535922074).

121042431002 is a wasteful number, since it uses less digits than its factorization.

121042431002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902192.

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

Adding to 121042431002 its reverse (200134240121), we get a palindrome (321176671123).

The spelling of 121042431002 in words is "one hundred twenty-one billion, forty-two million, four hundred thirty-one thousand, two".