1231432238670 has 32 divisors (see below), whose sum is σ = 3129286631328. Its totient is φ = 309065346048.

The previous prime is 1231432238657. The next prime is 1231432238717. The reversal of 1231432238670 is 768322341321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207285999 + ... + 1207287018.

It is an arithmetic number, because the mean of its divisors is an integer number (97790207229).

Almost surely, 2^{1231432238670} is an apocalyptic number.

1231432238670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231432238670 is an abundant number, since it is smaller than the sum of its proper divisors (1897854392658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231432238670 is a wasteful number, since it uses less digits than its factorization.

1231432238670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414573044.

The product of its (nonzero) digits is 290304, while the sum is 42.

Adding to 1231432238670 its reverse (768322341321), we get a palindrome (1999754579991).

The spelling of 1231432238670 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-two million, two hundred thirty-eight thousand, six hundred seventy".