150121252331 has 4 divisors (see below), whose sum is σ = 150148657200. Its totient is φ = 150093847464.

The previous prime is 150121252297. The next prime is 150121252349. The reversal of 150121252331 is 133252121051.

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 150121252331 - 2³⁴ = 132941383147 is a prime.

It is a super-2 number, since 2×150121252331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150121252331.

It is not an unprimeable number, because it can be changed into a prime (150121255331) 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, 13694216 + ... + 13705173.

It is an arithmetic number, because the mean of its divisors is an integer number (37537164300).

Almost surely, 2^150121252331 is an apocalyptic number.

150121252331 is a deficient number, since it is larger than the sum of its proper divisors (27404869).

150121252331 is an equidigital number, since it uses as much as digits as its factorization.

150121252331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27404868.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 150121252331 its reverse (133252121051), we get a palindrome (283373373382).

The spelling of 150121252331 in words is "one hundred fifty billion, one hundred twenty-one million, two hundred fifty-two thousand, three hundred thirty-one".