1020232255501 has 8 divisors (see below), whose sum is σ = 1024537054464. Its totient is φ = 1015928047680.

The previous prime is 1020232255457. The next prime is 1020232255531. The reversal of 1020232255501 is 1055522320201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020232255501 - 2²⁵ = 1020198701069 is a prime.

It is a super-2 number, since 2×1020232255501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020232255501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020232255531) 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, 3500676 + ... + 3780898.

It is an arithmetic number, because the mean of its divisors is an integer number (128067131808).

Almost surely, 2^{1020232255501} is an apocalyptic number.

It is an amenable number.

1020232255501 is a deficient number, since it is larger than the sum of its proper divisors (4304798963).

1020232255501 is a wasteful number, since it uses less digits than its factorization.

1020232255501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295571.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 1020232255501 its reverse (1055522320201), we get a palindrome (2075754575702).

The spelling of 1020232255501 in words is "one trillion, twenty billion, two hundred thirty-two million, two hundred fifty-five thousand, five hundred one".