11015420025 has 12 divisors (see below), whose sum is σ = 18212161232. Its totient is φ = 5874890640.

The previous prime is 11015419981. The next prime is 11015420041. The reversal of 11015420025 is 52002451011.

It is not a de Polignac number, because 11015420025 - 2¹³ = 11015411833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11015419983 and 11015420010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73436059 + ... + 73436208.

Almost surely, 2^11015420025 is an apocalyptic number.

11015420025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11015420025 is a deficient number, since it is larger than the sum of its proper divisors (7196741207).

11015420025 is a wasteful number, since it uses less digits than its factorization.

11015420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146872280 (or 146872275 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 11015420025 its reverse (52002451011), we get a palindrome (63017871036).

The spelling of 11015420025 in words is "eleven billion, fifteen million, four hundred twenty thousand, twenty-five".