1231035522465 has 32 divisors (see below), whose sum is σ = 2256975866880. Its totient is φ = 561274225344.

The previous prime is 1231035522443. The next prime is 1231035522523. The reversal of 1231035522465 is 5642255301321.

It is not a de Polignac number, because 1231035522465 - 2¹³ = 1231035514273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15427419 + ... + 15507008.

It is an arithmetic number, because the mean of its divisors is an integer number (70530495840).

Almost surely, 2^{1231035522465} is an apocalyptic number.

1231035522465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1231035522465 is a deficient number, since it is larger than the sum of its proper divisors (1025940344415).

1231035522465 is a wasteful number, since it uses less digits than its factorization.

1231035522465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30934821.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 1231035522465 in words is "one trillion, two hundred thirty-one billion, thirty-five million, five hundred twenty-two thousand, four hundred sixty-five".