31421155055523 has 8 divisors (see below), whose sum is σ = 42172322900736. Its totient is φ = 20808711957000.

The previous prime is 31421155055453. The next prime is 31421155055533. The reversal of 31421155055523 is 32555055112413.

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

It is not a de Polignac number, because 31421155055523 - 2¹⁴ = 31421155039139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31421155055533) 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, 34681186143 + ... + 34681187048.

It is an arithmetic number, because the mean of its divisors is an integer number (5271540362592).

Almost surely, 2^{31421155055523} is an apocalyptic number.

31421155055523 is a deficient number, since it is larger than the sum of its proper divisors (10751167845213).

31421155055523 is a wasteful number, since it uses less digits than its factorization.

31421155055523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69362373345.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 31421155055523 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred fifty-five million, fifty-five thousand, five hundred twenty-three".