151321123151 has 4 divisors (see below), whose sum is σ = 165077588904. Its totient is φ = 137564657400.

The previous prime is 151321123147. The next prime is 151321123159.

It is a happy number.

151321123151 is nontrivially palindromic in base 10.

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 151321123151 - 2² = 151321123147 is a prime.

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 151321123151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151321123159) 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, 6878232860 + ... + 6878232881.

It is an arithmetic number, because the mean of its divisors is an integer number (41269397226).

Almost surely, 2^151321123151 is an apocalyptic number.

151321123151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151321123151 is a deficient number, since it is larger than the sum of its proper divisors (13756465753).

151321123151 is a wasteful number, since it uses less digits than its factorization.

151321123151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13756465752.

The product of its digits is 900, while the sum is 26.

It can be divided in two parts, 151321 and 123151, that added together give a palindrome (274472).

The spelling of 151321123151 in words is "one hundred fifty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred fifty-one".