121350142 has 4 divisors (see below), whose sum is σ = 182025216. Its totient is φ = 60675070.

The previous prime is 121350137. The next prime is 121350143. The reversal of 121350142 is 241053121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121350143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30337534 + ... + 30337537.

It is an arithmetic number, because the mean of its divisors is an integer number (45506304).

Almost surely, 2^121350142 is an apocalyptic number.

121350142 is a deficient number, since it is larger than the sum of its proper divisors (60675074).

121350142 is an equidigital number, since it uses as much as digits as its factorization.

121350142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60675073.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121350142 is about 11015.9040482386. The cubic root of 121350142 is about 495.0853738403.

The spelling of 121350142 in words is "one hundred twenty-one million, three hundred fifty thousand, one hundred forty-two".