1231120341435 has 16 divisors (see below), whose sum is σ = 2003178862080. Its totient is φ = 645468743520.

The previous prime is 1231120341397. The next prime is 1231120341457. The reversal of 1231120341435 is 5341430211321.

It is not a de Polignac number, because 1231120341435 - 2¹⁸ = 1231120079291 is a prime.

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, 695547331 + ... + 695549100.

It is an arithmetic number, because the mean of its divisors is an integer number (125198678880).

Almost surely, 2^{1231120341435} is an apocalyptic number.

1231120341435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1231120341435 is a deficient number, since it is larger than the sum of its proper divisors (772058520645).

1231120341435 is a wasteful number, since it uses less digits than its factorization.

1231120341435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391096498.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1231120341435 its reverse (5341430211321), we get a palindrome (6572550552756).

The spelling of 1231120341435 in words is "one trillion, two hundred thirty-one billion, one hundred twenty million, three hundred forty-one thousand, four hundred thirty-five".