2151323151123 has 8 divisors (see below), whose sum is σ = 2868695064000. Its totient is φ = 1434083336168.

The previous prime is 2151323151079. The next prime is 2151323151143. The reversal of 2151323151123 is 3211513231512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2151323151123 - 2¹⁴ = 2151323134739 is a prime.

It is a super-2 number, since 2×2151323151123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2151323151143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32986473 + ... + 33051626.

It is an arithmetic number, because the mean of its divisors is an integer number (358586883000).

Almost surely, 2^{2151323151123} is an apocalyptic number.

2151323151123 is a deficient number, since it is larger than the sum of its proper divisors (717371912877).

2151323151123 is a wasteful number, since it uses less digits than its factorization.

2151323151123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66048961.

The product of its digits is 5400, while the sum is 30.

Adding to 2151323151123 its reverse (3211513231512), we get a palindrome (5362836382635).

The spelling of 2151323151123 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-three million, one hundred fifty-one thousand, one hundred twenty-three".