1242113613 has 8 divisors (see below), whose sum is σ = 1783547808. Its totient is φ = 764377584.

The previous prime is 1242113567. The next prime is 1242113629. The reversal of 1242113613 is 3163112421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1242113613 - 2⁸ = 1242113357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242113113) 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, 15924495 + ... + 15924572.

It is an arithmetic number, because the mean of its divisors is an integer number (222943476).

Almost surely, 2^1242113613 is an apocalyptic number.

1242113613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1242113613 is a deficient number, since it is larger than the sum of its proper divisors (541434195).

1242113613 is a wasteful number, since it uses less digits than its factorization.

1242113613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31849083.

The product of its digits is 864, while the sum is 24.

The square root of 1242113613 is about 35243.6322333553. The cubic root of 1242113613 is about 1074.9471365387.

The spelling of 1242113613 in words is "one billion, two hundred forty-two million, one hundred thirteen thousand, six hundred thirteen".