331113151 has 4 divisors (see below), whose sum is σ = 333495400. Its totient is φ = 328730904.

The previous prime is 331113143. The next prime is 331113163. The reversal of 331113151 is 151311133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151311133 = 839 ⋅180347.

It is a cyclic number.

It is not a de Polignac number, because 331113151 - 2³ = 331113143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331113751) 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, 1190916 + ... + 1191193.

It is an arithmetic number, because the mean of its divisors is an integer number (83373850).

Almost surely, 2^331113151 is an apocalyptic number.

331113151 is a deficient number, since it is larger than the sum of its proper divisors (2382249).

331113151 is a wasteful number, since it uses less digits than its factorization.

331113151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382248.

The product of its digits is 135, while the sum is 19.

The square root of 331113151 is about 18196.5148036650. The cubic root of 331113151 is about 691.8184554726.

Adding to 331113151 its reverse (151311133), we get a palindrome (482424284).

The spelling of 331113151 in words is "three hundred thirty-one million, one hundred thirteen thousand, one hundred fifty-one".