1231450502541 has 12 divisors (see below), whose sum is σ = 1910004861312. Its totient is φ = 703686001368.

The previous prime is 1231450502459. The next prime is 1231450502543. The reversal of 1231450502541 is 1452050541321.

It is not a de Polignac number, because 1231450502541 - 2¹³ = 1231450494349 is a prime.

It is a super-3 number, since 3×1231450502541³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231450502543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4188607005 + ... + 4188607298.

It is an arithmetic number, because the mean of its divisors is an integer number (159167071776).

Almost surely, 2^{1231450502541} is an apocalyptic number.

It is an amenable number.

1231450502541 is a deficient number, since it is larger than the sum of its proper divisors (678554358771).

1231450502541 is an equidigital number, since it uses as much as digits as its factorization.

1231450502541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377214320 (or 8377214313 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 1231450502541 in words is "one trillion, two hundred thirty-one billion, four hundred fifty million, five hundred two thousand, five hundred forty-one".