1231512053054 has 16 divisors (see below), whose sum is σ = 1897327194000. Its totient is φ = 599071987584.

The previous prime is 1231512053053. The next prime is 1231512053087. The reversal of 1231512053054 is 4503502151321.

It is a super-2 number, since 2×1231512053054² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231512053054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231512053053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493337 + ... + 1645115.

It is an arithmetic number, because the mean of its divisors is an integer number (118582949625).

Almost surely, 2^{1231512053054} is an apocalyptic number.

1231512053054 is a deficient number, since it is larger than the sum of its proper divisors (665815140946).

1231512053054 is a wasteful number, since it uses less digits than its factorization.

1231512053054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166267.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 1231512053054 in words is "one trillion, two hundred thirty-one billion, five hundred twelve million, fifty-three thousand, fifty-four".