1231335440253 has 12 divisors (see below), whose sum is σ = 1778612989920. Its totient is φ = 820882283976.

The previous prime is 1231335440239. The next prime is 1231335440267. The reversal of 1231335440253 is 3520445331321.

1231335440253 is a `hidden beast` number, since 1 + 2 + 3 + 13 + 354 + 40 + 253 = 666.

It is an interprime number because it is at equal distance from previous prime (1231335440239) and next prime (1231335440267).

It is not a de Polignac number, because 1231335440253 - 2⁵ = 1231335440221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231335440353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395238 + ... + 1618296.

It is an arithmetic number, because the mean of its divisors is an integer number (148217749160).

Almost surely, 2^{1231335440253} is an apocalyptic number.

It is an amenable number.

1231335440253 is a deficient number, since it is larger than the sum of its proper divisors (547277549667).

1231335440253 is a wasteful number, since it uses less digits than its factorization.

1231335440253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334928 (or 1334925 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 1231335440253 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-five million, four hundred forty thousand, two hundred fifty-three".