1502123122231 has 4 divisors (see below), whose sum is σ = 1524542870392. Its totient is φ = 1479703374072.

The previous prime is 1502123122229. The next prime is 1502123122337. The reversal of 1502123122231 is 1322213212051.

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 1502123122231 - 2¹ = 1502123122229 is a prime.

It is a super-2 number, since 2×1502123122231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1502123122196 and 1502123122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1502123122531) 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, 11209873980 + ... + 11209874113.

It is an arithmetic number, because the mean of its divisors is an integer number (381135717598).

Almost surely, 2^{1502123122231} is an apocalyptic number.

1502123122231 is a deficient number, since it is larger than the sum of its proper divisors (22419748161).

1502123122231 is an equidigital number, since it uses as much as digits as its factorization.

1502123122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22419748160.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 1502123122231 its reverse (1322213212051), we get a palindrome (2824336334282).

The spelling of 1502123122231 in words is "one trillion, five hundred two billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred thirty-one".