121201030131 has 8 divisors (see below), whose sum is σ = 162494199504. Its totient is φ = 80354273760.

The previous prime is 121201030127. The next prime is 121201030147. The reversal of 121201030131 is 131030102121.

It is a happy number.

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

It is not a de Polignac number, because 121201030131 - 2² = 121201030127 is a prime.

It is a super-2 number, since 2×121201030131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121201030131.

It is not an unprimeable number, because it can be changed into a prime (121201030121) 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, 111602616 + ... + 111603701.

It is an arithmetic number, because the mean of its divisors is an integer number (20311774938).

Almost surely, 2^121201030131 is an apocalyptic number.

121201030131 is a deficient number, since it is larger than the sum of its proper divisors (41293169373).

121201030131 is a wasteful number, since it uses less digits than its factorization.

121201030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223206501.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121201030131 its reverse (131030102121), we get a palindrome (252231132252).

The spelling of 121201030131 in words is "one hundred twenty-one billion, two hundred one million, thirty thousand, one hundred thirty-one".