1520231134012 has 24 divisors (see below), whose sum is σ = 2800493281040. Its totient is φ = 720092125440.

The previous prime is 1520231133973. The next prime is 1520231134063. The reversal of 1520231134012 is 2104311320251.

It is a super-2 number, since 2×1520231134012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3265738 + ... + 3702094.

Almost surely, 2^{1520231134012} is an apocalyptic number.

It is an amenable number.

1520231134012 is a deficient number, since it is larger than the sum of its proper divisors (1280262147028).

1520231134012 is a wasteful number, since it uses less digits than its factorization.

1520231134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482221 (or 482219 counting only the distinct ones).

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

Adding to 1520231134012 its reverse (2104311320251), we get a palindrome (3624542454263).

The spelling of 1520231134012 in words is "one trillion, five hundred twenty billion, two hundred thirty-one million, one hundred thirty-four thousand, twelve".