150231121 has 4 divisors (see below), whose sum is σ = 153724912. Its totient is φ = 146737332.

The previous prime is 150231113. The next prime is 150231143. The reversal of 150231121 is 121132051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150231121 - 2³ = 150231113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150231095 and 150231104.

It is not an unprimeable number, because it can be changed into a prime (150231161) 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, 1746831 + ... + 1746916.

It is an arithmetic number, because the mean of its divisors is an integer number (38431228).

Almost surely, 2^150231121 is an apocalyptic number.

It is an amenable number.

150231121 is a deficient number, since it is larger than the sum of its proper divisors (3493791).

150231121 is an equidigital number, since it uses as much as digits as its factorization.

150231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493790.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 150231121 is about 12256.8805574665. The cubic root of 150231121 is about 531.6020364546.

Adding to 150231121 its reverse (121132051), we get a palindrome (271363172).

It can be divided in two parts, 1502 and 31121, that added together give a palindrome (32623).

The spelling of 150231121 in words is "one hundred fifty million, two hundred thirty-one thousand, one hundred twenty-one".