121031303031 has 16 divisors (see below), whose sum is σ = 179714092800. Its totient is φ = 80503728984.

The previous prime is 121031302999. The next prime is 121031303059. The reversal of 121031303031 is 130303130121.

It is a happy number.

It is not a de Polignac number, because 121031303031 - 2⁵ = 121031302999 is a prime.

It is a super-2 number, since 2×121031303031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121031302995 and 121031303013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031303431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5093661 + ... + 5117366.

It is an arithmetic number, because the mean of its divisors is an integer number (11232130800).

Almost surely, 2^121031303031 is an apocalyptic number.

121031303031 is a deficient number, since it is larger than the sum of its proper divisors (58682789769).

121031303031 is a wasteful number, since it uses less digits than its factorization.

121031303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211475 (or 10211469 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121031303031 its reverse (130303130121), we get a palindrome (251334433152).

The spelling of 121031303031 in words is "one hundred twenty-one billion, thirty-one million, three hundred three thousand, thirty-one".