1150331421 has 16 divisors (see below), whose sum is σ = 1637245440. Its totient is φ = 716289840.

The previous prime is 1150331419. The next prime is 1150331431. The reversal of 1150331421 is 1241330511.

It is not a de Polignac number, because 1150331421 - 2¹ = 1150331419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150331431) 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, 138075 + ... + 146168.

It is an arithmetic number, because the mean of its divisors is an integer number (102327840).

Almost surely, 2^1150331421 is an apocalyptic number.

It is an amenable number.

1150331421 is a deficient number, since it is larger than the sum of its proper divisors (486914019).

1150331421 is a wasteful number, since it uses less digits than its factorization.

1150331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284336.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1150331421 is about 33916.5360996668. The cubic root of 1150331421 is about 1047.7901888148.

Adding to 1150331421 its reverse (1241330511), we get a palindrome (2391661932).

It can be divided in two parts, 11503 and 31421, that added together give a palindrome (42924).

The spelling of 1150331421 in words is "one billion, one hundred fifty million, three hundred thirty-one thousand, four hundred twenty-one".