2153101231215 has 32 divisors (see below), whose sum is σ = 4175711481600. Its totient is φ = 1043927868960.

The previous prime is 2153101231199. The next prime is 2153101231219. The reversal of 2153101231215 is 5121321013512.

2153101231215 is a `hidden beast` number, since 2 + 1 + 531 + 0 + 1 + 2 + 3 + 121 + 5 = 666.

It is not a de Polignac number, because 2153101231215 - 2⁴ = 2153101231199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153101231219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 724948425 + ... + 724951394.

It is an arithmetic number, because the mean of its divisors is an integer number (130490983800).

Almost surely, 2^{2153101231215} is an apocalyptic number.

2153101231215 is a deficient number, since it is larger than the sum of its proper divisors (2022610250385).

2153101231215 is a wasteful number, since it uses less digits than its factorization.

2153101231215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449899844 (or 1449899838 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 2153101231215 its reverse (5121321013512), we get a palindrome (7274422244727).

The spelling of 2153101231215 in words is "two trillion, one hundred fifty-three billion, one hundred one million, two hundred thirty-one thousand, two hundred fifteen".