1002231443155 has 8 divisors (see below), whose sum is σ = 1202686513200. Its totient is φ = 801779300256.

The previous prime is 1002231443131. The next prime is 1002231443179. The reversal of 1002231443155 is 5513441322001.

It is an interprime number because it is at equal distance from previous prime (1002231443131) and next prime (1002231443179).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002231443155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109381 + ... + 1420009.

It is an arithmetic number, because the mean of its divisors is an integer number (150335814150).

Almost surely, 2^{1002231443155} is an apocalyptic number.

1002231443155 is a deficient number, since it is larger than the sum of its proper divisors (200455070045).

1002231443155 is a wasteful number, since it uses less digits than its factorization.

1002231443155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463573.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1002231443155 its reverse (5513441322001), we get a palindrome (6515672765156).

The spelling of 1002231443155 in words is "one trillion, two billion, two hundred thirty-one million, four hundred forty-three thousand, one hundred fifty-five".