121142023 has 4 divisors (see below), whose sum is σ = 121183288. Its totient is φ = 121100760.

The previous prime is 121142011. The next prime is 121142057. The reversal of 121142023 is 320241121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121142023 - 2¹⁷ = 121010951 is a prime.

It is a super-3 number, since 3×121142023³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121141988 and 121142006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121146023) 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, 15861 + ... + 22222.

It is an arithmetic number, because the mean of its divisors is an integer number (30295822).

Almost surely, 2^121142023 is an apocalyptic number.

121142023 is a deficient number, since it is larger than the sum of its proper divisors (41265).

121142023 is an equidigital number, since it uses as much as digits as its factorization.

121142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41264.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121142023 is about 11006.4536977175. The cubic root of 121142023 is about 494.8021833113.

Adding to 121142023 its reverse (320241121), we get a palindrome (441383144).

It can be divided in two parts, 1211 and 42023, that added together give a palindrome (43234).

The spelling of 121142023 in words is "one hundred twenty-one million, one hundred forty-two thousand, twenty-three".