121402023 has 16 divisors (see below), whose sum is σ = 163692672. Its totient is φ = 80028000.

The previous prime is 121402019. The next prime is 121402051. The reversal of 121402023 is 320204121.

It is not a de Polignac number, because 121402023 - 2² = 121402019 is a prime.

It is a super-3 number, since 3×121402023³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121401993 and 121402011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121402123) 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, 212328 + ... + 212898.

It is an arithmetic number, because the mean of its divisors is an integer number (10230792).

Almost surely, 2^121402023 is an apocalyptic number.

121402023 is a deficient number, since it is larger than the sum of its proper divisors (42290649).

121402023 is a wasteful number, since it uses less digits than its factorization.

121402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 121402023 is about 11018.2586192193. The cubic root of 121402023 is about 495.1559186409.

Adding to 121402023 its reverse (320204121), we get a palindrome (441606144).

The spelling of 121402023 in words is "one hundred twenty-one million, four hundred two thousand, twenty-three".