1231532343152 has 10 divisors (see below), whose sum is σ = 2386093914888. Its totient is φ = 615766171568.

The previous prime is 1231532343127. The next prime is 1231532343199. The reversal of 1231532343152 is 2513432351321.

It is a super-4 number, since 4×1231532343152⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38485385708 + ... + 38485385739.

Almost surely, 2^{1231532343152} is an apocalyptic number.

It is an amenable number.

1231532343152 is a deficient number, since it is larger than the sum of its proper divisors (1154561571736).

1231532343152 is an equidigital number, since it uses as much as digits as its factorization.

1231532343152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76970771455 (or 76970771449 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

Adding to 1231532343152 its reverse (2513432351321), we get a palindrome (3744964694473).

The spelling of 1231532343152 in words is "one trillion, two hundred thirty-one billion, five hundred thirty-two million, three hundred forty-three thousand, one hundred fifty-two".