11620120501 has 4 divisors (see below), whose sum is σ = 12676495104. Its totient is φ = 10563745900.

The previous prime is 11620120487. The next prime is 11620120583. The reversal of 11620120501 is 10502102611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11620120501 - 2⁷ = 11620120373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11620120601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528187285 + ... + 528187306.

It is an arithmetic number, because the mean of its divisors is an integer number (3169123776).

Almost surely, 2^11620120501 is an apocalyptic number.

11620120501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11620120501 is a deficient number, since it is larger than the sum of its proper divisors (1056374603).

11620120501 is a wasteful number, since it uses less digits than its factorization.

11620120501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056374602.

The product of its (nonzero) digits is 120, while the sum is 19.

The spelling of 11620120501 in words is "eleven billion, six hundred twenty million, one hundred twenty thousand, five hundred one".