1231422505154 has 16 divisors (see below), whose sum is σ = 1894579938240. Its totient is φ = 599963883120.

The previous prime is 1231422505123. The next prime is 1231422505169. The reversal of 1231422505154 is 4515052241321.

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, 16969574 + ... + 17041985.

It is an arithmetic number, because the mean of its divisors is an integer number (118411246140).

Almost surely, 2^{1231422505154} is an apocalyptic number.

1231422505154 is a deficient number, since it is larger than the sum of its proper divisors (663157433086).

1231422505154 is a wasteful number, since it uses less digits than its factorization.

1231422505154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34012025.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 1231422505154 its reverse (4515052241321), we get a palindrome (5746474746475).

The spelling of 1231422505154 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-two million, five hundred five thousand, one hundred fifty-four".