23512351215450 has 48 divisors (see below), whose sum is σ = 58343225660640. Its totient is φ = 6266455523520.

The previous prime is 23512351215421. The next prime is 23512351215461. The reversal of 23512351215450 is 5451215321532.

It is a junction number, because it is equal to n+sod(n) for n = 23512351215399 and 23512351215408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43540764 + ... + 44077463.

It is an arithmetic number, because the mean of its divisors is an integer number (1215483867930).

Almost surely, 2^{23512351215450} is an apocalyptic number.

23512351215450 is an abundant number, since it is smaller than the sum of its proper divisors (34830874445190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23512351215450 is a wasteful number, since it uses less digits than its factorization.

23512351215450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87620031 (or 87620026 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 23512351215450 its reverse (5451215321532), we get a palindrome (28963566536982).

The spelling of 23512351215450 in words is "twenty-three trillion, five hundred twelve billion, three hundred fifty-one million, two hundred fifteen thousand, four hundred fifty".