121031031023 has 8 divisors (see below), whose sum is σ = 139545260448. Its totient is φ = 102822822144.

The previous prime is 121031031007. The next prime is 121031031029. The reversal of 121031031023 is 320130130121.

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

It is not a de Polignac number, because 121031031023 - 2⁴ = 121031031007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121031030992 and 121031031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031031029) 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, 76504286 + ... + 76505867.

It is an arithmetic number, because the mean of its divisors is an integer number (17443157556).

Almost surely, 2^121031031023 is an apocalyptic number.

121031031023 is a deficient number, since it is larger than the sum of its proper divisors (18514229425).

121031031023 is a wasteful number, since it uses less digits than its factorization.

121031031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153010273.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121031031023 its reverse (320130130121), we get a palindrome (441161161144).

The spelling of 121031031023 in words is "one hundred twenty-one billion, thirty-one million, thirty-one thousand, twenty-three".